A 0.266-kg volleyball approaches a player horizontally with a speed of 16.1 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 22.4 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. N

A 38.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 22.0 m/s. If the player was moving upward with a speed of 2.70 m/s just before impact.  (d) What will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? (Note that the force of gravity may be ignored during the brief collision time.) A 38.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 22.0 m/s. If the player was moving upward with a speed of 2.70 m/s just before impact.  (e)  If the ball is in contact with the players head for 49 ms, what is the average acceleration of the ball? (Note that the force of gravity may be ignored during the brief collision time.) A 38.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 22.0 m/s. If the player was moving upward…

A cruise ship with a mass of 1.83 x 10' kg strikes a pier at a speed of 0.652 m/s. It comes to rest 4.94 m later, damaging the ship, the pier, and the tugboat captain's finances. Calculate the average force (in N) exerted on the pier using the concept of impulse. (Hint: First calculate the time it took to bring the ship to rest. Assume the ship moves in the positive direction. Indicate the direction with the sign of your answer.)

A tennis player receives a shot with a 0.05 kg ball travelling horizontally at 40 m/s and returns the shot with the ball traveling horizontally in the opposite direction with a speed of also 40 m/s. Find  (a)  the magnitude of the impulse delivered to the ball, and (b) the average force applied/exerted on the ball if it remains in contact with racket for 0.002 sec. A.) (a) 2.0 kg m/s,                         (b) 8000 N B.) (a) 0.0  kg m/s,                         (b) 200  N C.) (a) 0.0 kg m/s,                         (b) 2000 N D.) (a) 4.0 kg m/s,                         (b) 2000 N

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.

A 0.060 kg ball, initially moving at a speed of 10.0 m/s, is struck by a bat causing it to rebound in the opposite direction at a speed of 15.0 m/s. Calculate the magnitude of the impulse on the ball in the collision. Recall the impulse-momentum theorem.

A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s and returns the shot with the ball traveling horizontally at 34.0 m/s in the opposite direction. (Assume the initial direction of the ball is in the -x direction.) (a) What is the impulse delivered to the ball by the racket?         N·s  Direction(b) What work does the racket do on the ball?            J

A racquetball of mass 0.860 kg is released from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.785 m. What impulse was applied to the ball by the floor? (You may safely ignore air resistance. Enter the magnitude in kg · m/s, and select the direction from the given options.) Find Magnitude

You have two vectors: A = 7.27î + 3ĵ and B = 4î – 0.95ĵ + 12k. If vector A represents an initial momentum vector, and vector B represents a final momentum vector, what is the z component of the impulse?