Incline Definition and 991 Threads

Homework Statement On an incline plane of known angle α (30°) lies a block of mass m1 (0.23 grams), connected through a pulley without friction to a second block of mass m2 (0.18 grams). Determine: - The acceleration of the block - The Tension force - The Normal force of the plane Homework...

Homework Statement Homework Equations These are the equations he provided. The Attempt at a Solution I actually have no idea how to do them. So any help would be much appreciated.

I am calculating the amount of torque required to give mobility to a 7000 lbs oilfield service vehicle. The vehicle has a rectangular frame with fairly even weight distribution. The radius, from wheel center to edge of tire is 11.5 inches. These tires are treaded with various half-inch tall...

Homework Statement A 259 g textbook slides up a 22.1° incline that is 2.55 m long. Using conservation of energy and assuming the incline is frictionless, what minimum initial speed is needed to accomplish this? mass = 0.259 kg Θ = 22.1° length of incline = 2.55 m Homework Equations KE =...

Homework Statement A crate is pulled up a rough incline. The pulling force is parallel to the incline. The crate is pulled a distance of 5.79 m. The acceleration of gravity is 9.8 m/s^2 theta=23.4 degrees mass= 8.91kg Force pulling on box= 142N coefficient of friction= 0.292 Initial velocity of...

Homework Statement A 5.0kg block initally traveling at 11m/s moves up a 30degrees incline. A frictional force of 9.4N acts on the block as it moves up the incline. What maximum vertical height, h, will the block reach? m = 5.0kg, vi = 11m/s, vf = 0m/s, Fr = 9.4N, Homework Equations...

Homework Statement We consider a yo-yo rolling down an incline, sloping with angle θ relative to horizontal. The yo-yo starts a distance d up the incline. The string is attached to a hook further up the incline, in such a way that it unwinds as the yo-yo rolls down. The yo-yo can be thought of...

Homework Statement A sphere of mass M and radius R is not necessarily solid or hollow. It has moment of inertia I = cMR^2 . The sphere starts from rest and rolls without slipping down a ramp from height H. It then moves back up the other side with height h, but now with no friction at all...

Homework Statement Calculate the force required to push a 22kg sled down a 6 degree hill and have an ending speed of 60km/hr after traveling 75m when the coefficient of friction is 0.20. Homework Equations Fnet= ma (V2)^2 = (V1)^2 + 2a(d2-d1) Ff= uN W= mg The Attempt at a Solution I'll use @...

Homework Statement There is an example problem in a textbook I'm looking at where they solve a simple incline-mass problem (friction included) using work-energy. We are given the mass 40kg, the length of the slide is 8 m, the incline is 30 degrees, the coefficient of kinetic friction is .35...

Homework Statement Force F = 460 N acts perpendicular to the inclined plane Determine the moment produced by F about point A. Enter the x, y, and z components of the moment separated by commas. Homework EquationsThe Attempt at a Solution r(CA)=4j-3k u(CA)=4/5j-3/5k r(CB)=-3i+4j...

I am hoping that I can have someone look over my answers. I have provided what I think is necessary to be appropriate posting, including the questions and attempts at all my answers. I would just like some feedback that I am correct in my answers. Thank you! This is an overview that all the...

Homework Statement Homework EquationsThe Attempt at a Solution I'm having trouble coming up with the equations for the system. At first, I thought that m2 = m1sin(theta), but that's not correct. How can I set this problem up?

Hi, I have a quick question about projectiles on an inclined plane. Specifically, when the projectile is launched down an inclined plane. Is it not possible to use your choice of sign convention? If the projectile is moving from left to right like so: V ...V .....V ....__ V__ Could I not...

Homework Statement At a construction site, a small crane is raising two boxes of nails on a plank to the roof. One box has already been opened and is half full, while the other box is new. The boxes, including the nails weigh 10kg and 20kg, respectively, and are the same size. If the...

Homework Statement Hi all, I have solved these problems just wanted to see if it's all ok problem 1: a trolley starts at the lowest point of a diagonal plane with a 20m/s speed. Its acceleration is 4m/s^2 going downhill, the trolley goes up then slows until it reaches 0 speed and then goes...

Please show me the relationship that proves how an inclined plane's angle of incline, θ, is equal to the angle used to find the components of gravity force. I know that the angles are the same, but I'd like a way to show it. Thanks!

Hi, I'm brushing up on my physics, and I have a real world problem I've chosen to solve! First the Word Problem part of it, then the Physics after that... I have a 3000 lb. Recreational Trailer that I wish to put on my driveway on the side. The driveway is at a 10 degree angle from level...

A 10 Kg block lies on a smooth plane inclined at 51 degrees. What force parallel to the incline would prevent the block from slipping?

I have two surfaces that have a coifficent of friction of .6. Disregarding mass (if possible) at what angle would the force of static friction and the normal force be equal

Homework Statement A projectile is thrown at angle θ with an inclined plane of inclination 45o . Find θ if projectile strikes the inclined the plane horizontal Homework Equations Taking x-axis along the incline and y-axis perpendicular to incline.[/B] Vx=ucosθ - gsint(45)t Vy=usinθ -...

The sphere is released at a height H above a fixed inclined plane, as shown in the attached figure. The coefficient of restitution at impact is e>0 (that is the sphere leaves the surface just after impact), the coefficient of friction between the sphere and the plane is \mu. I need a...

Homework Statement Crate of mass m is pushed horizontally with force F up an inclined plane of θ from ground. The plane has a friction coefficient of μ. a) draw free body diagram of crate b) derive expression for normal force c) derive expression for acceleration *** Use ONLY m, g, F, μ, θ...

Homework Statement Consider the three connected objects shown in Figure P5.88. Assume first that the inclined plane is friction- less and that the system is in equilibrium. In terms of m, g, and u, find (a) the mass M and (b) the tensions T1 and T2. Now assume that the value of M is double the...

Homework Statement A snowball, initially of mass m, slides down a slope inclined at an angle φ with respect to the horizontal. As it moves, the mass of additional snow Δm = αx that it accumulates is proportional to the distance traveled x. Write the differential equation of translational motion...

Homework Statement 3.00-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.00 m down the incline in 1.50 s. Find (a) the magnitude of the acceler- ation of the block, (b) the coefficient of kinetic friction between block and plane, (c) the friction force acting...

Homework Statement The image above shows a basketball (a thin spherical shell I=⅔ mR^2) rolling don an incline of height 8.4 m. If the ball is already rolling with an initial linear speed of 3.0 m/s then what will be the final linear speed when it rolls off the incline? Homework Equations I =...

Homework Statement I am trying to prove that the coefficient of static friction is equal to the tan of the angle of incline. (You can find the proof of this from ) I set the angle of incline as my independent variable and had an angle range from 10 to 37.5 degrees. After setting the slope to...

Homework Statement Homework Equations friction:[/B] f = μN incline angle: θ = arctan(1/10) summation of forces in y: N - mgcosθ = 0 summation of forces in x: -f - mgsinθ = ma (?) The Attempt at a Solution For this problem, I set the x-axis going up the incline and the y-axis normal to said...

Can someone check if my Sum of All Forces is setup correctly? Problem: Diagram: http://puu.sh/o6pLY/285d7b12c1.jpg Sum of all Forces:

To me the force P that pulls the bottom block up the incline seems a little low. Can someone confirm with my setup and work in brown is correct? Thank you. Problem: Work:

Would momentum be conserved on a cart if in one situation it is on an incline and the other it is on a flat surface(assuming it is pushed) I am confused because I thought that since gravity is an internal force, it is a conservative force. But then the final velocity of the cart would be...

Homework Statement A 20kg box has a static coefficient of friction of 0.28. If a force of 200N is applied at an angle of 45deg, is the box able to move. Explain why once the static friction is overcome, the frictional force decreases and the box moves easier. Homework Equations F=m*a Ff=μFN...

I am sorry, I generally would show some work but I have no clue on how to start off to find angle theta. The answer is given below and I have to get it. I don't know at all how to approach this problem and unfortunately I am not too strong on my trig identities either but I will try. May some...

Homework Statement A 1790N force pull a 266kg load up a 17º incline. what is the coefficient of static friction between load and incline. Homework EquationsThe Attempt at a Solution Tried several times on notebook but I haven't seemed to solve the problem.

Homework Statement No official problem, just a study guide fill-in-the-blanks with an extended simplification blank. Basically, no values were given, and it is a standard block on a standard slope with a north-east applied force pushing down on the block (not parallel to horizontal or vertical...

Homework Statement In the figure, a block of mass m is moving along the horizontal frictionless surface with a speed of 5.70 m/s. If the slope is 11.0° and the coefficient of kinetic friction between the block and the incline is 0.260, how far does the block travel up the incline? Homework...

Hey guys, I'm having difficulty with my university project which is to build an electric bike. My design is to have a friction wheel attached to the shaft of my 800W 2800rpm electric motor which is rated at 2.8Nm. I have two issues with my spreadsheets at the moment. Can someone please help...

Homework Statement A block is sliding with an initial velocity of 7.3 m/s along a frictionless horizontal surface when it then goes up an incline of 51.5 degrees that does have friction. If the kinetic friction coefficient is 0.1 then how far along the incline (hypotenuse) will the object...

Homework Statement A block is sliding with an initial velocity of 7.3 m/s along a frictionless horizontal surface when it then goes up an incline of 51.5 degrees that does have friction. If the kinetic friction coefficient is 0.1 then how far along the incline (hypotenuse) will the object...

Homework Statement A concrete block of mass 25kg is placed on a smooth slope that makes an angle of 30 degrees with the horizontal. Ignoring the effects of air resistance, calculate a) the acceleration of the block as it slides down (g = 9.81 ms-2) b) the distance the block moves in 3 seconds...

Homework Statement MECHANICS: Given Theta, L, M, and acceleration of elevator relative to ground. Find the time it takes for the block to reach the end of the incline. Here is a diagram: http://k-elahian.com/tmp/nip.PNG Homework Equations f=ma kinematics relative acceleration The Attempt...

Consider two blocks connected by an ideal rope that passes through an ideal pulley fixed on the corner of the wedge as shown in the figure. The blocks have masses m1 and m2. The block of mass m1 is on the incline surface (which is frictionless) while the block of mass m2 hangs up in the air...

Homework Statement Say you push a sled of mass m up a hill that is angled upwards at a certain angle \theta at a constant velocity. The hill has snow on it offering a friction force that is equal to 30% of the sleds weight. If you pushed the sled down the hill with the same amount of force...

Homework Statement Attached Homework Equations kinetic energy = (1/2) m v^2 potential energy = mgh The Attempt at a Solution Did I do this correctly, At the top, kinetic energy is 0 since it starts at rest. At the bottom we choose the potential to be zero So using conservation, mgz=...

Homework Statement An object of mass m is allowed to slide down a frictionless ramp of angle Θ, and its speed at the bottom is recorded as v. If this same process was followed on a planet with twice the gravitational acceleration as Earth, what would be its final speed? Multiple Choice...

Homework Statement I have an incline with a degree of Alpha and it is with friction that is equal to (Us = tan theta) It is accelerating to the right. Prove that this equation if it is true then the block will slide. a > g tan(Theta - Alpha) The Attempt at a Solution That was my thought of...

Homework Statement Brick is sliding off a roof, starts at the peak of the roof (7.0 m above ground), slides down roof with kinetic friction value of 0.28, very edge of roof is 4.0 m above ground. Where does the brick land on the ground? Please see image - http://imgur.com/wNdtlWD Homework...

Homework Statement http://tinypic.com/r/qs9q4o/9 http://tinypic.com/r/qs9q4o/9 Verify that the log will move up the ramp under the given conditions Homework EquationsThe Attempt at a Solution m1 = 220 m2 = 130 mu = 0.4 theta = 25 g = 9.81 N = (m1*g)*cos(theta)1) m2g – T = m2a Forces...

Homework Statement The only given data is that the incline is 60 degrees steep. I also presumed that there is friction. I made an attempt to solve the problem and would like to know if it is correct. Homework Equations Fnet=m*a Ffk-kinetic friction force k-friction coefficient The Attempt at...