Homework Answers
as all the ramps have same height and are frictionless.so work done is equal to mgh in all cases. Here only gravitational force oppose the motion so work done is mgh and same for all.
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Suppose the block from the previous question is launched with the same initial speed v_0 on...
2) Suppose the block from the previous question is launched with the same initial speed vo...
2) Suppose the block from the previous question is launched with the same initial speed vo on the following frictionless ramps. In each case, state whether the magnitude of the net work done on the block from the bottom to the top of the ramp is greater than, less than, or equal to the magnitude of the work done on the block in Question 1. Explain your answer in each case. Case a: the ramp is steeper (α > θ)...
In each of three experiments, puck A (of mass m) is launched on a frictionless surface...
In each of three experiments, puck A (of mass m) is launched on a frictionless surface with speed v_0 toward stationary pucks X, Y, and Z. Pucks X, Y, Z all have the same mass M, which is greater than the mass of puck A(M > m). X, Y, Z are made of the different materials. The collisions are not necessarily elastic. In Exp. 1, puck A hits puck X and stops. In Exp. 2, puck A rebounds to the...
[20 points] Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of...
[20 points] Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of the motion of block 1 during which it moves a distance L1, and the portion of the motion of block 2 during which it moves a distance L2. Each block is displaced the same vertical distance Z. The hand pushes parallel to the incline with the same magnitude of force FBH in both cases. Block 1 moves with constant speed Ramp Ramp 2 A....
[20 points] Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of...
[20 points] Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of the motion of block 1 during which it moves a distance L1, and the portion of the motion of block 2 during which it moves a distance L2. Each block is displaced the same vertical distance Z. The hand pushes parallel to the incline with the same magnitude of force Fbh in both cases. Block 1 moves with constant speed. Ramp 1 Ramp 2...
[20 points) Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of...
[20 points) Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of the motion of block 1 during which it moves a distance L1, and the portion of the motion of block 2 during which it moves a distance L2. Each block is displaced the same vertical distance Z. The hand pushes parallel to the incline with the same magnitude of force Fou in both cases. Block 1 moves with constant speed. Ramp 1 Ramp 2...
QUESTION 3 10 points Saved For the blocks in the diagram, rank the situations in order...
QUESTION 3 10 points Saved For the blocks in the diagram, rank the situations in order of the work done if the motion is upward (toward top of page) instead of to the right. In all cases, the forces are equal in magnitude and the displacements are of the same magnitude o 1.a, d, c&b 2.c, a, d, b 3.c&b, d, a 4.f, c&b, a QUESTION 4 10 points Saved A block starts from rest at the top of a...
Question 7 7 of 7 Constants Part A A 9.00-kg block of ice, released from rest...
Question 7 7 of 7 Constants Part A A 9.00-kg block of ice, released from rest at the top of a 1.57-m-long frictionless ramp, slides downhill, reaching a speed of 2.93 m/s at the bottom What is the angle between the ramp and the horizontal? AX Submit Request Answer Part B What would be the speed of the ice at the bottom if the motion were opposed by a constant friction force of 11.0 N parallel to the surface of...
IN IwODIMENSIONMOMENTUM Me HV Name Two objects are arranged on a level, frictionless table as shown. Two experiments are conducted in which object A is launched toward the stationary block B. The ini...
IN IwODIMENSIONMOMENTUM Me HV Name Two objects are arranged on a level, frictionless table as shown. Two experiments are conducted in which object A is launched toward the stationary block B. The initial speed of object A is the same in both experiments; the direction is not. The initial and final velocities of object A in each experiment are shown 1. The mass of block B is four times that of object A (m 4m). Top views Velocity vectors (drawn...
As shown below (not to scale), a block of mass starts from rest and slides down...
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...
4. A 20.0 kg box at the top edge of a ramp has a speed of...
4. A 20.0 kg box at the top edge of a ramp has a speed of 3.40 m/s as it begins to slide down the ramp. The ramp has a slope of 28.0° above horizontal. It moves down the ramp a distance of 5.30 m before coming to a stop. After drawing the picture and the FBD of the forces on the box, answer the following questions using only Energy and Work. (a) What is the network done on the...
2) Suppose the block from the previous question is launched with the same initial speed vo on the following frictionless ramps. In each case, state whether the magnitude of the net work done on the block from the bottom to the top of the ramp is greater than, less than, or equal to the magnitude of the work done on the block in Question 1. Explain your answer in each case. Case a: the ramp is steeper (α > θ)...
In each of three experiments, puck A (of mass m) is launched on a frictionless surface with speed v_0 toward stationary pucks X, Y, and Z. Pucks X, Y, Z all have the same mass M, which is greater than the mass of puck A(M > m). X, Y, Z are made of the different materials. The collisions are not necessarily elastic. In Exp. 1, puck A hits puck X and stops. In Exp. 2, puck A rebounds to the...
[20 points] Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of the motion of block 1 during which it moves a distance L1, and the portion of the motion of block 2 during which it moves a distance L2. Each block is displaced the same vertical distance Z. The hand pushes parallel to the incline with the same magnitude of force FBH in both cases. Block 1 moves with constant speed Ramp Ramp 2 A....
[20 points] Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of the motion of block 1 during which it moves a distance L1, and the portion of the motion of block 2 during which it moves a distance L2. Each block is displaced the same vertical distance Z. The hand pushes parallel to the incline with the same magnitude of force Fbh in both cases. Block 1 moves with constant speed. Ramp 1 Ramp 2...
[20 points) Two identical blocks are pushed up frictionless ramps as shown. Consider the portion of the motion of block 1 during which it moves a distance L1, and the portion of the motion of block 2 during which it moves a distance L2. Each block is displaced the same vertical distance Z. The hand pushes parallel to the incline with the same magnitude of force Fou in both cases. Block 1 moves with constant speed. Ramp 1 Ramp 2...
QUESTION 3 10 points Saved For the blocks in the diagram, rank the situations in order of the work done if the motion is upward (toward top of page) instead of to the right. In all cases, the forces are equal in magnitude and the displacements are of the same magnitude o 1.a, d, c&b 2.c, a, d, b 3.c&b, d, a 4.f, c&b, a QUESTION 4 10 points Saved A block starts from rest at the top of a...
Question 7 7 of 7 Constants Part A A 9.00-kg block of ice, released from rest at the top of a 1.57-m-long frictionless ramp, slides downhill, reaching a speed of 2.93 m/s at the bottom What is the angle between the ramp and the horizontal? AX Submit Request Answer Part B What would be the speed of the ice at the bottom if the motion were opposed by a constant friction force of 11.0 N parallel to the surface of...
IN IwODIMENSIONMOMENTUM Me HV Name Two objects are arranged on a level, frictionless table as shown. Two experiments are conducted in which object A is launched toward the stationary block B. The initial speed of object A is the same in both experiments; the direction is not. The initial and final velocities of object A in each experiment are shown 1. The mass of block B is four times that of object A (m 4m). Top views Velocity vectors (drawn...
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...
4. A 20.0 kg box at the top edge of a ramp has a speed of 3.40 m/s as it begins to slide down the ramp. The ramp has a slope of 28.0° above horizontal. It moves down the ramp a distance of 5.30 m before coming to a stop. After drawing the picture and the FBD of the forces on the box, answer the following questions using only Energy and Work. (a) What is the network done on the...
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