Homework Answers
Here negative work is done by gravity on the block as they move up.
Since all the surfaces are frictionless, in all the cases the workdone by gravity is same.
Workdone by gravity = -m*g*h
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2) Suppose the block from the previous question is launched with the same initial speed vo...
Suppose the block from the previous question is launched with the same initial speed v_0 on...
Suppose the block from the previous question is launched with the same initial speed v_0 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 (alpha > Theta) case...
[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...
1. A stunt performer (m=60 kg) is launched from a cannon (safely). Inside the cannon the...
1. A stunt performer (m=60 kg) is launched from a cannon (safely). Inside the cannon the performer is launched straight up in the air, from rest to a speed of 30 m/s through an 8 m long cannon. a) (2 pts) How much energy is required to launch the performer? b) (2 pts) How much force is required to launch the performer? c) (4 pts) What is the performer's speed when they are 10 m above the ground? 2. An...
Consider a frictionless track as shown in the figure below. A block of mass m1 = 5.65 kg is released from A
Consider a frictionless track as shown in the figure below. A
block of mass m1 = 5.65
kg is released from A. It makes a
head-on elastic collision at B with a block of
mass m2 = 20.0
kg that is initially at rest. Calculate the maximum
height to which m1 rises after the
collision.Two masses are shown on a frictionless wooden track. The left
part of the track curves downward from left to right, starting from
an almost-vertical slope and then decreasing in...
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...
I got the first side done and included the answers, I just need the second part...
I
got the first side done and included the answers, I just need the
second part
PHY 220 Laboratory Experiment 9 Prelab: WORK AND ENERGY Name In the lab you will make use of a setup that is similar to the situation shown below. The picture shows a block of mass M on an incline elevated an angle 0above the horizontal. The block starts from rest at point P. Neglect friction between the block and the incline.) 1. Block starts...
[2] A block with mass ma is placed on an inclined plane with slope angle α...
[2] A block with mass ma is placed on an inclined plane with slope angle α and is connected to a second hinging block with mass ma > ma by a massless cord passing over a small frictionless pulley (see figure). The coefficient of kinetic friction between mass mA and the incline is negligible. Initially the masses are at rest, with mass mA at the bottom of the incline and mass mg a height h above the table supporting the...
Correct is given, please explain why for each Concept Question 4 – An object is initially...
Correct is given, please explain why for each Concept Question 4 – An object is initially at rest. A net force (which always points in the same direction) is applied to the object so that the power supplied by the net force is constant. As the object gains speed, a) the magnitude of the net force decreases. b) the magnitude of the net force increases. c) the magnitude of the net force remains constant. d) the magnitude of the net...
Suppose the block from the previous question is launched with the same initial speed v_0 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 (alpha > Theta) case...
[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...
1. A stunt performer (m=60 kg) is launched from a cannon (safely). Inside the cannon the performer is launched straight up in the air, from rest to a speed of 30 m/s through an 8 m long cannon. a) (2 pts) How much energy is required to launch the performer? b) (2 pts) How much force is required to launch the performer? c) (4 pts) What is the performer's speed when they are 10 m above the ground? 2. An...
Consider a frictionless track as shown in the figure below. A
block of mass m1 = 5.65
kg is released from A. It makes a
head-on elastic collision at B with a block of
mass m2 = 20.0
kg that is initially at rest. Calculate the maximum
height to which m1 rises after the
collision.Two masses are shown on a frictionless wooden track. The left
part of the track curves downward from left to right, starting from
an almost-vertical slope and then decreasing in...
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...
I
got the first side done and included the answers, I just need the
second part
PHY 220 Laboratory Experiment 9 Prelab: WORK AND ENERGY Name In the lab you will make use of a setup that is similar to the situation shown below. The picture shows a block of mass M on an incline elevated an angle 0above the horizontal. The block starts from rest at point P. Neglect friction between the block and the incline.) 1. Block starts...
[2] A block with mass ma is placed on an inclined plane with slope angle α and is connected to a second hinging block with mass ma > ma by a massless cord passing over a small frictionless pulley (see figure). The coefficient of kinetic friction between mass mA and the incline is negligible. Initially the masses are at rest, with mass mA at the bottom of the incline and mass mg a height h above the table supporting the...
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