Title: impule 4
Course: Physics copy 1

Q: Samantha is playing tennis. The tennis ball with mass 0.05 kg approaches her racket with a velocity of 30 m/s. She returns the ball with a velocity of 40 m/s. If the average magnitude of the force on the ball was 78N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 45 (± 1)

Q: Mitchell is playing tennis. The tennis ball with mass 0.05 kg approaches his racket with a velocity of 40 m/s. He returns the ball with a velocity of 60 m/s. If the average magnitude of the force on the ball was 130N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 40 (± 2)

Q: Kaley is playing tennis. The tennis ball with mass 0.05 kg approaches her racket with a velocity of 40 m/s. She returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 120N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 30 (± 1)

Q: Kyle is playing tennis. The tennis ball with mass 0.05 kg approaches his racket with a velocity of 30 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 100N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 30 (± 1)

Q: Bryn is playing tennis. The tennis ball with mass 0.06 kg approaches his racket with a velocity of 30 m/s. He returns the ball with a velocity of 50 m/s. If the average magnitude of the force on the ball was 160N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 30 (± 1)

Q: Althea is playing tennis. The tennis ball with mass 0.06 kg approaches her racket with a velocity of 30 m/s. She returns the ball with a velocity of 50 m/s. If the average magnitude of the force on the ball was 110N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 45 (± 1)

Q: Micah is playing tennis. The tennis ball with mass 0.04 kg approaches his racket with a velocity of 50 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 160N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 20 (± 1)

Q: Kyle is playing tennis. The tennis ball with mass 0.045 kg approaches his racket with a velocity of 50 m/s. He returns the ball with a velocity of 50 m/s. If the average magnitude of the force on the ball was 110N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 40 (± 1)

Q: Nick is playing tennis. The tennis ball with mass 0.06 kg approaches his racket with a velocity of 60 m/s. He returns the ball with a velocity of 40 m/s. If the average magnitude of the force on the ball was 170N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 35 (± 1)

Q: Evelyn is playing tennis. The tennis ball with mass 0.045 kg approaches her racket with a velocity of 50 m/s. She returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 80N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 45 (± 1)

Q: David is playing tennis. The tennis ball with mass 0.045 kg approaches his racket with a velocity of 50 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 120N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 30 (± 1)

Q: Bryn is playing tennis. The tennis ball with mass 0.045 kg approaches his racket with a velocity of 40 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 110N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 30 (± 1)

Q: Kate is playing tennis. The tennis ball with mass 0.055 kg approaches her racket with a velocity of 30 m/s. She returns the ball with a velocity of 40 m/s. If the average magnitude of the force on the ball was 150N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 25 (± 1)

Q: Kelly is playing tennis. The tennis ball with mass 0.045 kg approaches his racket with a velocity of 60 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 120N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 35 (± 1)

Q: David is playing tennis. The tennis ball with mass 0.05 kg approaches his racket with a velocity of 40 m/s. He returns the ball with a velocity of 60 m/s. If the average magnitude of the force on the ball was 140N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 35 (± 1)

Q: Kyle is playing tennis. The tennis ball with mass 0.055 kg approaches his racket with a velocity of 30 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 82N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 40 (± 1)

Q: Althea is playing tennis. The tennis ball with mass 0.06 kg approaches her racket with a velocity of 40 m/s. She returns the ball with a velocity of 60 m/s. If the average magnitude of the force on the ball was 300N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 20 (± 1)

Q: Samantha is playing tennis. The tennis ball with mass 0.05 kg approaches her racket with a velocity of 40 m/s. She returns the ball with a velocity of 60 m/s. If the average magnitude of the force on the ball was 130N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 40 (± 2)

Q: Micah is playing tennis. The tennis ball with mass 0.06 kg approaches his racket with a velocity of 50 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 240N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 20 (± 1)

Q: Mitchell is playing tennis. The tennis ball with mass 0.045 kg approaches his racket with a velocity of 40 m/s. He returns the ball with a velocity of 40 m/s. If the average magnitude of the force on the ball was 72N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 50 (± 1)

Q: Justin is playing tennis. The tennis ball with mass 0.04 kg approaches his racket with a velocity of 60 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 72N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 50 (± 1)

Q: David is playing tennis. The tennis ball with mass 0.06 kg approaches his racket with a velocity of 40 m/s. He returns the ball with a velocity of 40 m/s. If the average magnitude of the force on the ball was 240N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 20 (± 1)

Q: Mitchell is playing tennis. The tennis ball with mass 0.06 kg approaches his racket with a velocity of 60 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 180N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 30 (± 1)

Q: Peter is playing tennis. The tennis ball with mass 0.06 kg approaches his racket with a velocity of 50 m/s. He returns the ball with a velocity of 40 m/s. If the average magnitude of the force on the ball was 180N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 30 (± 1)

Q: Bryn is playing tennis. The tennis ball with mass 0.04 kg approaches his racket with a velocity of 30 m/s. He returns the ball with a velocity of 30 m/s. If the average magnitude of the force on the ball was 48N, the racket must have been in cantact with the ball for _____ ms. (Enter your answer correct to two significant digits)
A: 50 (± 1)