[20 points] Two carts are moving on a level frictionless table as shown in the overhead...
mA >mg [20 points) Two carts are moving on a level frictionless table as shown in the overhead view diagram at right. At the instant the carts pass the dashed line on the right, their kinetic energies are the same. The mass of cart A is greater than the mass of cart B. direction of initial velocities A. [3 pts] Is the initial speed of cart B greater than, less than, or equal to the initial speed of cart 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 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...
Exam 3 (cont.) 19. 8 of 12 Consider two carts of mass m and 4m, at rest on a frictionless, horizontal surface. Now suppose a horizontal force is exerted on each cart. The forces are constant, and they have the same magni- tude F, and the same direction. The force on m acts for 2 seconds and the force on 4m acts for 1 second. After the forces cease, the carts continue moving with constant velocity forever. Compare the momenta...
A 0.2 kg plastic cart and a 20 kg lead cart both roll without friction on a horizontal surface. Equal forces are used to push both carts forward a distance of 1 m, starting from rest. After traveling 1 m, is the kinetic energy of the plastic cart greater than, less than or equal to the kinetic energy of the lead cart? Explain. Match the words in the left column to the appropriate blanks in the sentences on the right....
Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.2 m/s and a mass of 0.45 kg. Cart 2 has a mass of 0.62 kg. (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...
Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.1 m/s and a mass of 0.46 kg. Cart 2 has a mass of 0.74 kg (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...
Suppose that two carts, with a compressed spring between them (but not attached to either cart), are free to roll on a level table. The carts have very different masses and are initially stationary. Consider frictional losses to be negligible. The spring is released and the carts move apart. Are the final kinetic energies of the two carts equal, or is one greater than the other (if so, specify which is greater)? Explain your reasoning using fundamental physics principles, laws,...
Two carts are sitting on air track (frictionless surface). Assume cart A has mass of .50 kg, cart B has mass of 1.0 kg. You push cart A and give it an initial speed of 5.0 m/s toward B which was originally at rest. The two carts stick together and move together. Right after collision, the air is turned off so the two carts slide to a stop due to kinetic friction. Assume the coefficient of kinetic friction is .20....