Ramp Definition and 672 Threads

Ball mass m and radius r rolls down ramp with coefficient of static friction of mu. If the ball is released from rest what is the maximum angle theta of the ramp that the ball rolls without slipping? I've got theta max = inverse(tan(mu)) but the answer in the book is theta =...

[car] _o_o_____ ....| ....| 1.48 meters high ________|_______________________(must land here) ....|------21.1 meters--------| A stunt driver wants to make his car jump over a distance of 21.1 meters below a horizontal ramp With what minimum speed must he drive off...

Ok, a simple vector problem. I found all the data, but have no idea to set it up. Here is what I am trying to do... I want to find it Car1 can ramp over the top of Car2, without hitting it. Both cars are ramping off the same ramp, and let's assume air resistance will not be significant...

hey everybody, I am new to the forum, and glad to be here. looks like a great place for help when all has failed! :cry: if you race 2 cans of broth down a ramp, one frozen and one still liquid, which one wins? well, i did this mathematically, using the equation for a solid ring...

physics help pleasezzzzz Suppse a giant hamburger slides down a rampt aht has a 45 degree incline. The coefficient of kinetic frction between the hamburger and the ramp is .597, so that the net force actiong on the hamburger is 6.99 x 10^3 N. What is the mass of the hamburger? What is the...

Movers want to set the ramp of their truck so that the work they do against the combination of gravity and friction is a minimum for crates moving up the ramp with constant velocity. µ is the coefficient of kinetic friction and θ is the angle between the ramp and the ground. For the work to be a...

A block is given an initial velocity of 3.00 m/s up a frictionless 22.0° incline. How far up the incline does the block slide before coming (momentarily) to rest? So basically, how far does it go up before the block starts falling. http://img11.paintedover.com/uploads/11/p522.gif At first...

A 3.2-kg block is released 34m from a massless spring with force constant 178N/m that is fixed along a frictionless plane inclined at an angle of 27° above the horizontal. Find the maximum compression of the spring. This is what I have tried so far. equation (1) (1/2 mv^2) = (1/2 kx^2)...

A wet bar of soap slides freely down a ramp 9.35 m long inclined at 7.00°. How long does it take to reach the bottom? Assume muk = 0.0550. Okay I've got my x & y componants 9.35cos(7)=9.28 9.35sin(7)=1.14 But now what since I don't have the mass of the soap or the acceleration, what do I...

Lets say you have a box at the bottom of a frictionless ramp and you give it a velocity (X) of let's say 10 m/s, so that when it gets on the ramp, the components velocities would be: Vx = 10 * cos (angle) Vy = 10 * sin (angle) then once it gets ontp the ramp, the gravitational acceleration...

Hey guys, have a question for you that I cannot get passed while laying out a track idea for the October races. The Elements: RC length/weight = 16 inches/7-10 pounds Total Track length = 44 feet (including ramp) Total Ramp length/height = 20 feet/20 inches End of Ramp to landing zone =...

A 10 kg block slides from rest down a 5m long ramp. If the coefficient of friction between the block and the ramp is 0.4, what is the final velocity of the block when it reaches the botton of the ramp? I set this into two Fnet equations, x and y. I then solved for the acceleration in x...

Imagine an initially stationary block is placed at some height on a frictionless ramp. The ramp has several hills and valleys in it. Assume the block never flies off the ramp, the hills have identical circular tops, and the hills are of progressively greater heights, all shorter than the height...

K got to do test corrections, and i just need help on this one. A solid sphere released from rest rolls down a ramp, dropping through a vertical height of 0.61m. The ball leaves the bottom of the ramp, which is 1.22m above the floor (moving horizontally). What distance does the ball move in...

Situation: A wood car with 2 eggs as passengers goes down a 2.43 meter ramp at 40 degrees. The car has a crumple zone on the front to absorb some impact. If the car bounces when it hit the cement block at the end of the ramp, how will the bouncing affect the force the car experiences on impact?

I have a simple physics problem that I can't correctly solve. I have a 50g toy bus that is sitting still on a ramp. I need to find the Force needed to keep the bus still on the ramp. How do I do this?

I have to do an important experiment tomorrow. In physics, we have this setup: We have a ramp (we don't know how long, we don't know the angle), and we put it on a normal counter top with the 'exit' end up to a meter from the edge. We place a camera film capsule off the edge of the table...

I would really appreciate some help on this problem, or even a push in the right direction: An object of unknown mass slides down an incline in which Θ= 6.9. The object slides with a constant velocity of 1.4 m/s. At the bottom of the incline, the object slides on to a horizontal in...

A box of mass 32.0 kg sits on a horizontal steel ramp 3.4 m long with a coefficient of static friction of 0.30 between the ramp and the box. The end of the ramp is slowly lifted until the box begins to slide down the ramp. What angle does the ramp make with the ground when this happens? What...

Hi, I have a ramp problem question that I don't think makes sense.. Question: A 1kg block is placed on a ramp where the angle at which the slope is increased by 1 degree until it falls down the ramp. The block falls down the ramp when the angle is 25 degrees, find the a) force of gravity...

I am having trouble figuring out this problem: A ball is launched with a velocity of 10 m/s at an angle of 50 deg to the horizontal. The launch point is at the base of a ramp of horizontal length d1 = 6.00 m and height d2 = 3.60 m. A plateau is located at the top of the ramp. a) Does the ball...

on the acceleration of a cylinder down a ramp This problem has been vexing me for some time, for the life of me I can't figure it out or figure out why I can't figure it out. It seems like gsin(Θ)=a+αr, where Θ is the angle of the ramp, a is the acceleration, α is the...