Question

1.A small block of mass 3.5 kg starting from rest slides down on an incline plane...

1.A small block of mass 3.5 kg starting from rest slides down on an incline plane of height 2.0 m, 40 degrees with respect to horizontal (Fig. 2). The coefficient of kinetic friction between the block and the incline plane is 0.25. At the end of the incline plane, the block hits the top of a hemispherical mound of ice (radius 1.0 m) , loses 75% of final kinetic energy (KE=0.5mv*v) before the collision, then slide down on the surface of ice. (a) Find the speed of the block at the bottom of the incline plane before and after the collision. (b) At what height above the ground does the block lose contact (normal force between the block and the ice equals to zero) with the ice? Hint, the speed of the block is too high to follow the curve of the ice (end of circular motion) .

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Name:__________________________________________Section____ A block of mass ? = 12.0 kg is released from rest on an incline...
Name:__________________________________________Section____ A block of mass ? = 12.0 kg is released from rest on an incline angled at θ = 30 degrees. The block slides down and incline of length ? = 1.40 m along the incline, which has a coefficient of kinetic friction between the incline and the block of ?? = 0.180. The block then slides on a horizontal frictionless surface until it encounters a spring with a spring constant of ? = 205 N/m. Refer to the...
A 1 kg block, starting from rest, slides down a 22 degree inclined plane that is...
A 1 kg block, starting from rest, slides down a 22 degree inclined plane that is .55m tall. At the bottom, the 1 kg block collides with a 3 kg block. The two blocks stick together and slide .52 m on a friction less horizontal surface for .52 sec. What is the speed of the 1kg block before it collides with the 3 kg block? What is the acceleration of the 1kg block as it travels down the inclined plane?...
1) A block is released from point A and it slides down an incline (theta =...
1) A block is released from point A and it slides down an incline (theta = 30 degrees) where the coefficient of kinetic friction is 0.3. It goes 5m and hits a spring with a spring constant k = 500 N/m. While it is being acted upon by the spring, assume it is on a frictionless surface. a) How far is the spring compressed? b) How far does the block go up the plane on the rebound from the spring?...
Block A of mass mA=6kg ,slides down an incline from a height of 10 m from...
Block A of mass mA=6kg ,slides down an incline from a height of 10 m from the ground. Block A then collide with block B, with a mass mB=8kg which is at rest in the ground. The collision is elastic. There is no friction between the blocks and the incline nor between the blocks and the ground. a) Find the velocity of A before it collides with B ( 5 points) b) Find the maximum height that block A climbs...
A block of mass 4.0Kg slides down an incline plane of length 10 meters that makes...
A block of mass 4.0Kg slides down an incline plane of length 10 meters that makes an angle of 30 degrees with the horizontal. The coefficient of kinetic friction between the block and the incline is 0.3. If the block is has an initial speed of 2mis down the incline at the top of the incline, then what is the speed at the bottom? Show calculations. Indicate answer. In the previous problem, what was the gain in Kinetic Energy? Show...
A 2.70-kg block starts from rest at the top of a 30.0° incline and slides a...
A 2.70-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.90 m down the incline in 1.20 s. (a) Find the magnitude of the acceleration of the block. (m/s)^2 ​(b) Find the coefficient of kinetic friction between block and plane. (c) Find the friction force acting on the block. ​Magnitude N Direction (d) Find the speed of the block after it has slid 1.90 m.    (m/s^2)
2. A block slides down a plane inclined at 35o with respect to the horizontal, with...
2. A block slides down a plane inclined at 35o with respect to the horizontal, with coefficient of kinetic friction 0.2. Find the ratio of the time taken to slide down the plane starting from rest, compared to the time it would take to slide down the plane if it were frictionless. 3. A 20 kg block slides frictionlessly down an inclined plane that is 2.8 m long and 1.2 m high. A person pushes up against the block, parallel...
Starting from rest, a 4.30-kg block slides 1.80 m down a rough 30.0° incline. The coefficient...
Starting from rest, a 4.30-kg block slides 1.80 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 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 were...
A block with mass m = 14.6 kg slides down an inclined plane of slope angle...
A block with mass m = 14.6 kg slides down an inclined plane of slope angle 15.8 ° with a constant velocity. It is then projected up the same plane with an initial speed 4.35 m/s. How far up the incline will the block move before coming to rest?
A block of mass m = 2.10 kg slides down a 30.0∘ incline which is 3.60...
A block of mass m = 2.10 kg slides down a 30.0∘ incline which is 3.60 m high. At the bottom, it strikes a block of mass M = 8.00 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. Determine the speed of the block with mass m = 2.10 kg after the collision. Determine the speed of the...