Collision Definition and 1000 Threads

http://i.minus.com/i7YDkagp0bChQ.png Homework Equations p = mv (v1m1 + v2m2) Vf = -------------------- (m1+m2) The Attempt at a Solution I got that the total momentum was 9.64 by using p=mv for summing m1, v1 and m2, v2. Then I used inverse trig to try...

Hi friends, I have an issue in solving a Collision of multiple particles. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/1395304_1432383000322139_406785433_n.jpg Attempt...

Hi friends, I have an issue in solving a Collision of ball with inclined plane. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/1379765_1432382863655486_1628611844_n.jpg Attempt...

Hi friends, I have an issue in Analysis of collision of particles from graph. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-ash4/q71/s720x720/1381762_1432382976988808_995987085_n.jpg Attempt...

Hi friends, I have an issue in solving a Collision of liquid with floor. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-ash4/q71/s720x720/1379505_1432382913655481_500299018_n.jpg Attempt...

Hi friends, I have an issue in solving a Collision Problem. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/1384332_1432382970322142_101322866_n.jpg Attempt...

Hi friends, I have an issue in solving a Kinetic energy problem during collision. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn2/1375160_1432382953655477_313625437_n.jpg Attempt...

Homework Statement Two photons collide and create an electron-positron pair: y1+y2 -> e-+e+ If the wavelength of y1 is 1 mm calculate the energy threshold for photon y1 to produce the electron-positron pair. Suppose E(y1)=hc/\lambda2 where \lambda2 =1.1 mm Hints: In the center of...

Momentum is conserved in a collision so, the momentum before collision = the momentum after the collision. But i have a hard time understanding this, as P=m*v in a collision doesn't velocity decrease? And if velocity decreases so does the momentum of the object as the mass is constant. It...

Homework Statement Particle A has mass m and initial velocity v0. A collides with particle B, which has mass M and is initially at rest. After the collision, the particles follow the paths shown in the figure. Calculate φ in degrees, for an ideal elastic collision. Data: m = 0.7 kg; M =...

Dear members, please help me to understand clearly what we are talking about when the topic is the collision, scattering or absorption event of two particles. It is clear that there is a "qiuck" interaction between them. Also I know that we can consider the cross section For example let's...

Homework Statement A uniform bar of Length L and Mass M is hit by a blob of putty moving with velocity v. The blob hits the bar at a distance d from the center of the bar and sticks to the bar at the point of contact. Obtain expressions for the velocity of the systems center of mass and for...

Finding velocity after collision if you know mass and height. Help! Homework Statement A 50 gram ball enters a a pendulum with mass 200 g. The pair then swings up to a height of 11 cm. find the velocity immediately after the collision? Then find initial velocity of ball before collision...

Homework Statement A ball A is dropped from the top of a building of height h and simultaneously a ball B is thrown upwards and both balls collide. After the collision the ball A has the double the velocity of ball B Determine the fraction of the building where the balls collide...

A ball (mass m1 = 2 kg, velocity v = 5 m/s [the ball moves horizontally]) collides with another ball (mass m2 = 8 kg) which is hanging on a string (length l = 1.35 m). The collision is completely elastic. What is the tension force affecting the ball (m2) immediately after the collision? I...

Homework Statement A car with a mass of 1200 kg and a speed of 70 km/h collides in a head-on collision with a motorcycle. The vehicles lock together and continue along with the speed of 45 km / h in the cars original direction. The motorcycle weighing 250 kg. What is the speed of the...

Which bulb is really more collisions of electrons inparallel connection? Maybe we can easily get the conclusion about this question. The intensity of bulb's light is depend on the power of electricity(IV), so the upper blub has more number of collisons between electrons and atoms. but I...

This isn't actually a homework problem, I'm just wondering what I'm doing wrong: Homework Statement Say we've got a stationary brick wall, and a blob of jello with mass m is launched at the wall with speed v. The blob has length d along the direction of motion. The blob splatters...

Could anyone guide me through this problem? https://www.physicsforums.com/showthread.php?t=348863 Just need to get started. Note that this would need to be solved in the proton rest frame.

What would be the outcome and what speeds would be needed to create a reaction?

Homework Statement A particle of mass ##m_1## collides elastically with a stationary particle of mass ##m_2## (##m_1>m_2##). Find the maximum angle through which the striking particle may be deviated as a result of the collision. (Ans. ##\sin(\theta_{max})=m_2/m_1##) Homework Equations The...

Homework Statement In a crash test a solid concrete wall is used to test crashworthiness. A particular SUV weighs 338.183 kg and is accelerated to 33.3485 m/s before colliding head on with the barrier. What impulse must be applied is required to stop the SUV? This gives Impulse =...

Hello everyone, My Name is Dwayne McIntosh. I am not that good at Physics or Mathematics however i do have a problem. I was brainstorming the other day and i wanted to know, what if one was to use say electromagnetic waves (may be different wavelength,frequency or Photon Energy, but with...

This isn't an actual homework problem, but it feels like it could be. Homework Statement Two masses, m1 and m2 are involved in an elastic collision. The initial velocities v1_0 and v2_0 are 1 and -2, respectively. The final velocities v1_1 and v2_1 are -3 and 0, respectively. Solve for...

(Q) A Ford car of mass 1138kg, collides with a Vauxhall car, of mass 1849kg, stationary at a stop line. The ford stops immediately but pushes the Vauxhall forward 13.42m. Was the Ford traveling over 13.41m/s before the collision? I can't seem to find a solution as everything I have tried...

Homework Statement "Consider a head-on, elastic collision between two modies whose masses are m and M, with m << M. It is well known that if m has speed v_0 and M is initially t rest, m will bounce straight back with its speed unchanged, while M will remain at rest (to an excellent...

Homework Statement A particle of mass ##m_1## experienced a perfectly elastic collision with a stationary particle of mass ##m_2##. What fraction of the kinetic energy does the striking particle lose, if it recoils at right angles to its original motion direction. (Ans: ##2m_1/(m_1+m_2)## )...

Homework Statement Using the equation for the final velocity of an inelastic collision, show that mechanical energy is not conserved in the collision. (Do this only with variables.)Homework Equations Vf = (m1v1i + m2v2i)/(m1 + m2) KE = (1/2)mv2 TME = KE + PEThe Attempt at a Solution I honestly...

Homework Statement 2 particles travel towards each other at 10ms-1. Particle 1 has a mass of 10kg and particle 2 has a mass of 30kg. It is an inelastic collision. Find the magnitude of the Impulse of particle 1 and 2. Homework Equations I=Ft=mv-mu m1u1+m2u2=(m1+m2)V The Attempt at...

Homework Statement A uniform bar of mass m and length l is suspended on a frictionless hinge. A horizontally launched blob of clay of mass m strikes the bottom end of the bar and sticks to it. After that, the bar swings upward. What is the minimum initial speed v of the blob of clay that...

Homework Statement A rod of mass M is lying on a flat frictionless surface. A small ball of mass m and velocity v collides with the rod in the center at the rod at right angle to the rod. The collision is elastic. Homework Equations a) Where is the axis of rotation for the rod...

Is it is true that all elastic collision are like rubber balls, then how does indivisible particles collide if they can't change their shape, that is store the energy inside like rubber balls and then release it?

Lets say an archer shoots an arrow or a gun fires a bullet, why is it that a lighter objects (arrow and a bullet) gain larger kinetic energy than the heavier one's? Shouldn't it be Newtons 3rd law: force from the gun powder at the equal distance hence same gained kinetic energy?

Possible "criteria" or parameters for planetary collision? Suppose a computer model were created to simulate two proto-type planets on a collision course (for example, the Earth-Moon collision in the Hartman theory of the Moon formation). We know that the Moon is spiraling outwards (tidal...

Show that the kinetic energy of the Earth after a collision can be ignored (stuck & desperately need help)? A ball of mass m2 is dropped and bounces off the floor. If the impact is viewed as an elastic collision between the ball and the earth, show that the kinetic energy of the Earth after the...

Homework Statement Ball A with mass 4 kg is moving with a velocity of 8 m/s North when it crashes into Ball B with unknown mass moving with a velocity of 6 m/s West. This collision is perfectly elastic. If Ball A ends up moving with a velocity of 6.5 m/s @ 120° after the collision, find the...

Collision Question: (URGENT) Exam tomorrow Hi all, I have an exam on collision and projectile motion tomorrow, and was wondering if anyone could answer this question: I get an answer, but my friend gets a completely different answer. I was wondering if anyone could just clarify and show us the...

Homework Statement Two balls collide on a frictionless surface. Mass m1 = .4 kg and Mass m2 = .3 kg . The initial velocity of m1 is 3 m/s. While m2 is at rest. After the collision the velocity of m1 is 1.5 m/s, θ1 above the horizontal. While m2 gains an unknown velocity of v2f, θ2 below the...

Homework Statement A smooth sphere of mass m collides obliquely with a smooth sphere of mass 2m which is at rest.The velocity of the mass m was 8i + 4j before impact, where i is along the lines of centres at impact.the m mass is then deflected through 90 degreese by the impact. find (i) its...

Homework Statement A smooth sphere of mass 4 kg collides obliquely with another smooth sphere of mass m which is at rest.After impact the two spheres move at right angles to each other.If the coefficient of restitution was (4/7), calculate the value of m. Homework Equations m1u1 + m2u2...

These are the instructions: What to do: 1. Connect the two photogates to DIG 1 and DIG 2 ports of the LabQuest device. Connect this device to a computer and turn on the device. 2. Open Logger Pro 3.8.4 software. Click Folder icon/symbol. Open Probes & Sensors > Photogates > Two Gate Timing. 3...

Hello. I am new to these forums. I don't really know if this is the right place to post this, but here it goes. I was thinking, what If there were two bodies (represented by points) in space (two dimensional space to keep it simple) with known position at time zero, where the first is moving...

Homework Statement A ball of mass 100 g is projected straight up with a speed of 5 m/s from the floor. Another ball of mass 50 g is hung from the ceiling by a light string at a height of 1.00 m directly above the first ball, so that the projected ball collides elastically with it. Calculate...

Following on from my (still not quite solved) question here: Calculating event time using gsl_poly_solve_quadratic I'm now looking to calculate the collision response (new linear velocity vector) for the sphere after a collision with a line (rail). The current code I'm extending has two...

Suppose a bubble with some small mass and constant velocity hits a bundle of "bubbles"- the collision is unusual- there is no dynamic friction but the point of contact sticks- they are springy so both compress by a third before returning to their former shape. The new total bundle can't...

Homework Statement An unlikely weapon was once proposed which had all of the people in China to jump up and down simultaneously. Let us say there are 2 billion people (2.0 x 10^9) with an average mass of 50 kg. They all climb ladders which are 1 meter tall. At a particular instant they all...

Help slove pls!:( A uniform smooth sphere P,of mass 3m, is moving in a straight line with speed u on a smooth horizontal table.Another uniform smooth sphere Q, of mass and m and having the same radius as P, moving with speed 2u in the same straight line as P but in the opposite direction to P...

Homework Statement A ball of mass m moves horizontally with speed 20 m/s towards a smooth barrier xy which makes an angle tan-inverse(4/3) with the horizontal.The coefficient of restitution is (3/4) find (i) The speed of the ball after the impact (ii) The magnitude of the impulse due to...

Homework Statement I am designing a physics simulation that models two balls colliding along a straight line path. I can change the coefficient of restitution, the initial velocities, and their masses. THe assignment asks that we vary at least three parameters, so in my case, the three are...

It appears that a big planet size body collided with Jupiter in the recent past, What all are the evidences required to prove a recent big collision on a planet? 1) Jupiter's diameter was increased nearly 50% when comparing modern values with ancient Indian astronomical text Surya-siddhanta...