When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point of a vertical toss). The racquet exerts a force of 540 N on the ball for 4.9 ms, giving it a final velocity of 42.5 m/s. Using the data, find the mass of the ball, in grams.

After falling from rest from a height of 25 m, a 0.30-kg ball rebounds upward, reaching a height of 15 m. If the contact between ball and ground lasted 2.1 ms, what average force was exerted on the ball? (Enter the magnitude.)

A baseball player hits a bunt during which the bat is in contact with the ball for 0.0005 s. If the bat applies a force of 3,000 N to the 0.15 kg baseball, what is the change in the ball's velocity? Your answer should be in units of m/s but you should only submit the number for your answer (and don't worry about negative signs, just use a positive value).

When serving a tennis ball, the player hits it when its velocity is zero (at the highest point of a vertical toss). The racket exerts a force of 510 N on the ball for 5.00 ms, giving it a final velocity of 47.0 m/s. Using these data, find the mass (in g) of the ball.

A golf ball of mass 4.50x10^-2 kg is struck by a club. Contact lasts 2.00x10^-4 s, and the ball leaves the tee with a horizontal velocity of 50.0 m/s. Compute the average force the club exerts on the ball by finding its average acceleration.

A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0024 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.9 x 102 ft/s, find the average force (in kN) exerted on the ball by the club. kN

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 675 m/s in a time of 5.00 ms (milliseconds)? (Enter the magnitude.)