Inelastic collision Definition and 334 Threads

Homework Statement Let us consider a perfectly inelastic collision between two protons: an incident proton with mass m, kinetic energy K, and momentum magnitude p joins with an originally stationary target proton to form a single product particle of mass M. Due to conservation of momentum...

1. a mass m1=5g moving to the right at a speed of 100m/s undergoes a perfectly inelastic collision with a block of wood, m2= 100g, at rest. what is the speed just after the collision? 2. if the mass and block of wood described in question #1 are parts of a ballistic pendulum of length 2m...

Homework Statement Particle 1 of mass 230 g and speed 2.80 m/s undergoes a one-dimensional collision with stationary particle 2 of mass 400 g. Homework Equations What is the magnitude of the impulse on particle 1 if the collision is elastic? What is the magnitude of the impulse on...

1. Explain why it is important for inelastic equation to occur in a plasma in order for process such as ionization and excitation to happen. 2. 1/2(m1u1^2) = 1/2(m1)(v1^2 + u1^2 sin^2(theta)) + 1/2(m2v2^2) + (delta)U3. According to the inelastic equation above, in order for ionization and...

Homework Statement A railroad car with a mass 2.50x10^4 kg moves at 4.00 m/s. It collides and connects to 3 more cars each with the same weight as the first, they're moving 2.00 m/s. After they connect the final velocity was 2.50 m/s. How much energy is transformed into internal energy in the...

Homework Statement A 10-g bullet moving at 1000 m/s strikes and passes through a 2.0 kg block initially at rest as shown in the diagram. The bullet emerges from the block with a speed of 400 m/s. [PLAIN]http://img34.imageshack.us/img34/554/82265240.gif To what maximum height will the...

i don't know how am i supposed to answer this Physics question..all i know its about generating a formula or something like that..here's the problem: 1.a)For an elastic, two-body head-on collisions, show that the general v2 - v1 = - (v2 - v1). That is, relative speed of recession after the...

Homework Statement A bag of sand with mass=55 is dropped from h=30 ft Velocity at impact with Earth is 43.8ft/sec The impact time ( time for sand bag to come to rest) is 1/10 sec. What is the impulse force on the sand bag in this inelastic collision ?Homework Equations Impulse force = change in...

Suppose the traffic investigators determined from the skid marks that these cars came to rest with a displacement of 9.72m at 72 degrees North of East, and the coefficient of friction was .72. The red car had a mass of 1000kg, but the blue car's mass was 1300 kg in this accident. Find the...

Homework Statement A car of mass 2200 kg collides with a truck of mass 4500 kg, and just after the collision the car and truck slide along, stuck together, with no rotation. The car's velocity just before the collision was < 35, 0, 0 > m/s, and the truck's velocity just before the collision...

Homework Statement A 0.440 kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 23.0 N/m. The block rests on a frictionless surface. A 5.90*10^-2 wad of puddy is thrown at the block, hitting it with a speed of 2.50 m/s and sticking. How...

Homework Statement Two clay balls of the same mass stick together in an completely inelastic collision. Before the collision, one travels at 5.6 m/s and the other at 7.8 m/s, and their paths of motion are perpendicular. If the mass of each ball is 0.24 kg, what is the magnitude of the...

Does anyone know of any inelastic impact / collision equations or theories that somehow incorporate a spring constant or Modulus of Elasticity? I have a problem where I need to show how changing a different material (ie. a different Elasticity) will affect the velocity after impact. The...

Homework Statement You are moving due North in your car with velocity (0, 20m/s). You see another car traveling with a relative velocity of 15 m/s with an angle of 150 degrees. You have a mass of 30 kg, the other tricyclist has a mass of 40kg and the tricycles both have mass 10kg. You...

Homework Statement A 950kg compact car is moving with the velocity ⃗v1 = 32 ˆx + 17 ˆy m/s. It skids on an icy, frictionless patch and collides with a 450kg hay wagon moving with velocity ⃗v2 = 12ˆx +14ˆy m/s. If the two stay together, what is their velocity? Homework Equations...

Homework Statement 1 m long rotatable bar with a mass of 2 kg is held on vertical stick that goes through its center of gravity. A bullet with mass 0.2 kg is shot with a speed 1 m/s horizontally at the edge of the bar. After the collision the bullet lodges into the bar. Calculate the angular...

Homework Statement One hockey puck of mass 0.2 kg strikes an identical stationary puck on a frictionless ice rink. If the first puck had a velocity V0 = 3.8 m/s before the collision and V1 = 0.8 m/s after in the same direction, what fraction of the energy was lost? Homework Equations...

Homework Statement A student performs a ballistic pendulum experiment using an apparatus similar to that shown it the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swingin point). After the bullet hits the block, the block rises to its highest...

Homework Statement Two 75.0 kg hockey players skating at 6.15 m/s collide and stick together. If the angle between their initial directions was 130°, what is their speed after the collision? (Let the motion of player 1 be in the positive x-direction and the motion of player 2 be at an angle of...

1. A projectile (mass = 0.17 kg) is fired at and embeds itself in a target (mass = 2.43 kg). The target (with the projectile in it) flies off after being struck. What percentage of the projectile's incident kinetic energy does the target (with the projectile in it) carry off after being struck...

Homework Statement A wooden block and a gun are firmly fixed to opposite ends of a long glider mounted on a frictionless air track. The block and gun are a distance L apart. The system is initially at rest. The gun is fired and the bullet leaves the gun with a velocity vb and impacts the...

Homework Statement Two trucks with same masses are moving toward each other along a straight line with speeds of 50 mi/hr and 60 mi/hr. What is the speed of the combined trucks after completely inelastic collision? Homework Equations P_{}1+P_{}2= (2M) V_{}f The Attempt at a Solution...

Homework Statement 2 objects of equal mass collide inelastically having initial speed v. after that they move off together with speed v/3. what is the angel between the initial directions? Homework Equations The Attempt at a Solution mv = 2m v/3 cos ...

Homework Statement blah blah blah Homework Equations momentum = momentum' mv + mv = (m1+m2)v (Uk)N = friction force The Attempt at a Solution It's hard to find how to start with randomly given values. Thank you so much for your help! :D

1. A 3 kg mass hits a stationary mass of 9 kg and sticks. What is the change in entropy? So, I figure that I will need to \DeltaS = \DeltaQ/T. However, I don't know the heat or the temperature of this reaction, so this couldn't possibly be the way to evaluate. So, I think I could...

Homework Statement Kevin has a mass of 84.2 kg and is skating with in-line skates. He sees his 23.2-kg younger brother up ahead standing on the sidewalk, with his back turned. Coming up from behind, he grabs his brother and rolls off at a speed of 1.74m/s. Ignoring friction, find Kevin's speed...

Imagine two small metal spheres of equal mass and size moving at the same speed in opposite direction collide with each other. Logically (without doing the math) it seems that both spheres will collide and just stop "dead" (because of equal mass and speed). I don't know whether I made a...

The law of conservation of momentum states that all momentum is conserved in a collision. Momentum is defined as p = mv. When a collision occurs, most of the time a lot of velocity is lost and most of the mass remains. For example, a fast moving trolley runs into a brick wall, after hitting the...

Question: Two spacecraft from different nations have linked in space and are coasting with their engines off, heading directly toward Mars. The spacecraft s are thrust apart by large springs. Spacecraft 1, with a mass of 1.9 x 10^4 kg, then has a velocity of 3.5 x 10^3 km/h at 5.1 degrees to...

Homework Statement Two balls od the same masses collide, the first one is moving with the velocity v_1, the second is stationary. The angle between them is given by the statement: "the direction of the velocity of the first ball forms an angle \alpha=30^\circ with the plane of osculation of...

Homework Statement On a greasy, essentially frictionless lunch counter, a submarine sandwich of mass 0.480 kg, moving with speed 3.00 m/s to the left, collides with a grilled cheese sandwich of mass 0.270 kg moving with speed 1.10 m/s to the right. 1) If the two sandwiches stick together...

Hi, I just don't really understand rotational motion very well, and I don't know how to proceed with this problem. Homework Statement You throw a 235 g ball 26 m/s at the apparatus shown in the figure. http://volta.byu.edu/ph121/homework/hw18f3.png The apparatus catches the ball, causing it...

1. Homework Statement Three carts move on a frictionless horizontal track with different masses and speeds. Cart 1: 4 kg (5 m/s to the right) Cart 2: 10 kg (3 m/s to the right) Cart 3: 3 kg (4 m/s to the left) Cart 1 and 2 are right behind each other on the left side of the track...

Inelastic Collision, only masses known need help Homework Statement A projectile (mass = 0.28 kg) is fired at and embeds itself in a target (mass = 2.35 kg). The target (with the projectile in it) flies off after being struck. What percentage of the projectile's incident kinetic energy does...

Homework Statement a bullet of mass 0.005kg traveling at 120m/s hits a block at rest that falls and compresses a spring (k=99n/m) to a maximum compression of 0.121m what is the mass of the block? (solve using momentum) m1=0.005kg m2=? v1=120m/s v`=? k=99n/m x=0.121m Homework Equations...

Can you explain how momentum is conserved while KE isn't in an inelastic collision?? I've though about this for a while... If KE from object X is lost during the collision it means that the object will slow down. If it does, how is momentum in the system conserved? Could you explain this by...

1. There are two 50 kg skaters in a friction-less horizontal surface. Both have velocities of |V|=10 m/s, in opossite directions (that is, skater 1's velocity is 10 m/s i, while skater 2's velocity is -10 m/s i). They both skate parallel to each other with a distance of 1,5m. Skater 1 has a...

Can anyone help me with a physics Inelastic Collision question: A truck mass weighing 3000kg collides into a car that is at rest weighing mass 1000kg. they stick together after the collision and the kinetic energy loss was 100kj=J. The final velocity after the collision is 15 m/s. I need to...

Homework Statement A bullet of mass 10 g strikes a ballistic pendulum of mass 2.0 kg. The center of mass of the pendulum rises a vertical distance of 12 cm. Assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed. Homework Equations p = mv, pi = pf...

Homework Statement Raindrops of mass 0.99 mg fall vertically at a constant speed of 9.0 m/s, striking a horizontal skylight at the rate of 1000 drops/s and draining off. The window size is 17.0 cm x 25.0 cm. Assume the collisions of the drops with the window are completely inelastic...

Homework Statement Block A (2.1kg) is moving at 7.8 m/s to the right and collides head on with block B (3.4kg), which is moving at 4.2 m/s to the left. a) What is the velocity (magnitude and direction) of the blocks after the collision, if the two blocks stick together? b) What is the...

Homework Statement In an American football game, a 90.0-kg fullback running east with a speed of 5.00 m/s is tackled by a 95.0-kg opponent running north with a speed of 3.00 m/s. (a) Explain why the successful tackle constitutes a perfectly inelastic collision. (b) Calculate the velocity of...

Homework Statement A compact car and a large truck collide head on and stick together (perfectly inelastic collison). Which vehicle experiences the larger momentum change? Which vehicle experiences the larger acceleration during the collision? Explain your answers. Homework...

Homework Statement Two wooden blocks of mass 8 kg and 4 kg respectively approach each other from opposite directions on a smooth level surface at a relative speed of 16 m s^1 . After a head-on collision they separate at a relative speed of 6 m s^1 . The initial velocity of the 8 kg block...

Homework Statement Car 1 (1500kg) is heading north 80km/h, Car 2 (3500kg) is heading east 50km/h. They collide inelastically. a.) Speed and direction of the wreck (car 1 + car 2)? b.) The kinetic energy lost? HERE I HAVE A PROBLEM: c.) What is the kinetic energy of the two-particle...

Homework Statement a 20 kg wood ball hangs from a 2.0 m long wire. the maximum tension the wire can withstand without breaking is 400 n. a 1.0 kg projectile traveling horizontally hit and embeds itself in a the wood ball. what is the largest speed this projectile can have without causing the...

Homework Statement Two bodies A and B collide in a totally inelastic collision. Using the relevant equations and given that the mass of body A is 1200kg and the collision lasts for 0.2s, determine the average force vectors acting on each body during the collision. Homework Equations...

Homework Statement A .2kg mass traveling on a frictionless horizontal surface at a speed of 3 m/s. It hits a 1.3 kg mass at rest that is connected to a massless spring with a a spring constant of 100 Newtons per meter. The other end of the spring is fixed. Calculate the linear momentum and...

Homework Statement A cart of mass 1.2 kg that is moving to the right qt 3m/s collides on a block of wood of mass 0.8 kg that is lying at rest on top of a frictionless table. if the collision is inelastic, find the velocity of the composite body. Homework Equations The Attempt at a...

Homework Statement A cart of mass 1.2 kg that is moving to the right qt 3m/s collides on a block of wood of mass 0.8 kg that is lying at rest on top of a frictionless table. if the collision is inelastic, find the velocity of the composite body. Homework Equations The Attempt at a...