Two objects with mass (mı = 8 kg and m2 = 5 kg) are moving towards each other with velocities (v1 = 13 () and v2 = 6(-â)). a) If the two objects undergo an inelastic collision and stick together, find the post-collision velocity of the combined objects. b) What is the impulse of each object in the scenario from part (a)? e) If the collision from part (a) took (0.2 seconds), what is the force that each object experienced? a) If the two objects instead undergo a perfectly elastic collision, find the post-collision velocities of each object.

A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 59.2 m/s and returns the shot with the ball traveling horizontally at 38.0 m/s in the opposite direction. (Take the direction of the ball's final velocity (toward the net) to be the +x-direction.) (a) What is the impulse delivered to the ball by the racket? magnitude Your response differs from the correct answer by more than 10%. Double check your calculations. N - s direction +x (b) What work does the racket do on the ball? (Indicate the direction with the sign of your answer.)

In the overhead view of the figure, a 410 g ball with a speed v of 3.2 m/s strikes a wall at an angle e of 31° and then rebounds with the same speed and angle. It is in contact with the wall for 5.2 ms. In unit-vector notation, what are (a) the impulse on the ball from the wall and (b) the average force on the wall from the ball? (a) Number i i+ j Units (b) Number i i+ i j Units >

A bullet is fired into a block of wood sitting on a block of ice. The bullet has an initial velocity of 500m/s and a mass of 0.005kg. The wooden block has a mass of 1.2kg and is initially at rest. The bullet remains embedded in the block of wood afterward. a) Assuming that the momentum is conserved, find the velocity of the block of wood and bullet after the collision. b) What is the magnitude of the impulse that acts on the block of wood in this process? c) Does the change in momentum of the bullet equal that of the block of wood?

Ball A has a mass of 3 kg and is moving with a velocity of (vA)1 = 9 m/s when it makes a direct collision with ball B, which has a mass of 2.5 kg and is moving with a velocity of (vB)1 = 5 m/s . Suppose that e = 0.7. Neglect the size of the balls. a) Determine the velocity of A just after the collision measured to the right. (vA)2 = ? b) Determine the velocity of B just after the collision measured to the right. (vB)2 = ?

A ball of mass 0.160 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.870 m. What impulse was given to the ball by the floor? magnitude direction

A(n) 0.5 kg softball is pitched at a speed of 17 m/s. The batter hits it back directly at the pitcher at a speed of 25 m/s. The bat acts on the ball for 0.012s. What is the magnitude of the impulse imparted by the bat to the ball?Answer in units of N · s. What is the magnitude of the average force exerted by the bat on the ball?Answer in units of N.

A billiard ball traveling at 5.00 m/s collides with an identical billiard ball initially at rest on the level table. The initially moving billiard ball (A) deflects 60° from its original direction while the other ball, which was initially at rest, travels 30° from the original direction of A. a)Find the speed of each of the masses A and B after the collision? b) Is the collision elastic or inelastic?

A golf ball is moving at speed vo to the East. After deflecting off a tree, it moves at a speed of 0.90vo in a direction which is 25° North of East. Check all the following answers which are true statements. There may be more than one correct answer! The impulse vector (delivered by the tree) has components which point North and West The ball's momentum vector has the same magnitude before and after the collision The impulse vector (delivered by the tree) points purely to the North The ball's momentum vector decreases in magnitude during the collision

A 0.263-kg volleyball approaches a player horizontally with a speed of 12.8 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 21.7 m/s. (a) What impulse is delivered to the ball by the player? (Take the direction of final velocity to be the positive direction. Indicate the direction with the sign of your answer.) kg • m/s (b) If the player's fist is in contact with the ball for 0.0600 s, find the magnitude of the average force exerted on the player's fist.