Solution.
A solid block of mass 60.0 kg starts from rest and slides down a rough surface...
As shown below (not to scale), a block of mass starts from rest and slides down a frictionless ramp of height h. Upon reaching the bottom of the ramp, it continues to slide across a flat frictionless surface. It then crosses a "rough patch" on the surface of length d=10m. This rough patch has a coefficient of kinetic friction uK=.1. After crossing the rough patch, the block's final speed is vf=2m/s. What is the height of the ramp? Hint: I...
A block (6 kg) starts from rest and slides down a frictionless ramp #1 of height 6 m. The block then slides a horizontal distance of 1 m on a rough surface with kinetic coefficient of friction μk = 0.5. Next, it slides back up another frictionless ramp #2. Find the following numerical energy values: 1.Initial gravitational potential energy on Ramp #1: U1G = J 2.Kinetic energy at bottom of Ramp #1 before traveling across the rough surface: K =...
When released from rest on a rough incline, a block of mass M = 20.0kg slides down with an acceleration a = 5.0m/s2. The incline angle 6= 53.10. M e [b] What is the value of the co-efficient of kinetic friction, Uk?
3. Starting from rest, a 5.20-kg block slides 1.60 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is μk = 0.436. (a) Determine the work done by the force of gravity. J (b) Determine the work done by the friction force between block and incline. J (c) Determine the work done by the normal force. J (d) Qualitatively, how would the answers change if a shorter ramp at a steeper angle...
a block with a mass of 2.5 kg starts from rest at the top of the apparatus shown below. it then slides without friction down the incline, and collides with a spring attached to a wall. The spring has a spring constant of K=120N/m. Using the principle of energy conservation, a. find the initial gravitational potential energy of the block at point A b. find the kinetic energy of the block at point B c. what is the velocity of...
An object of mass 8.00 kg starts from rest and a slides 2.00 m down a rough 35.0° incline. The coefficient of kinetic friction between the block and the incline is 0.366. Determine (b) the work done by the friction force between block and incline (This part (b) of the previous question) 0 -47.00 0 -23.5) 0 -38.6) O-46.3)
8. A 30.0-kg block slides down a frictionless incline. If the block starts from rest and has a speed of 3.00-m/s at the bottom, at what vertical distance did the block start its descent Answer: 0.459 m 9. It is found that a force of 18-N is required to stretch a spring by 0.300 meters from its natural length. (a) What is the spring constant of the spring? (b) How much energy is stored in the spring when it is...
A 1.0 kg box starts from rest and slides down a very rough inclined plane as shown below. Use energy principles to determine the coefficient of friction on the incline surface if its speed at the bottom is 2.78 m/s. The box sits on a incline that is 0.5m above the ground on a 30 degree incline.
A block of mass m = 3.00 kg starts from the rest and slides down a 30.0∘ incline which is 3.60 m high. At the bottom, it strikes a block of mass M = 6.40 kg which is at rest on a horizontal surface (Figure 1). (Assume a smooth transition at the bottom of the incline.) The collision is elastic, and friction can be ignored. (A) Determine the speed of the block with mass m = 3.00 kg after the...
A mass M slides downward along a rough plane surface inclined at angle to the horizontal. Initially the mass has a speed Vi before it slides a distance L down the incline. The coefficient of kinetic friction between the mass and the incline is uk. The power associated with the work done by the frictional force is (Select] The power associated with the work done by the gravitation force is (Select] The power associated with the work done by the...