A tennis player receives a shot with the ball (0.0631 kg) traveling horizontally at 53.7 m/s and returns the shot with the ball traveling horizontally 40.5 m/s in the opposite direction.

a. What is the impulse delivered to the ball by the racquet?

b. What work does the racquet do on the ball?

Question

Physics

Esmeralda

23 December, 13:29

A tennis player receives a shot with the ball (0.0631 kg) traveling horizontally at 53.7 m/s and returns the shot with the ball traveling horizontally 40.5 m/s in the opposite direction.

a. What is the impulse delivered to the ball by the racquet?

b. What work does the racquet do on the ball?

+1

Answers (1)

Know the Answer?

Dominique Trevino · Answer 1

Impulse = change in momentum

= m (v - u)

=.0631 (40.5 + 53.7)

= 5.944 N. s

b)

Work done will be equal to change in kinetic energy

= 1/2 m (40.5² - 53.7²)

= 1/2 m (1640.25 - 2883.69)

= - 621.72 x m

= - 39.23 J

A tennis player receives a shot with the ball (0.0631 kg) traveling horizontally at 53.7 m/s and returns the shot with the ball traveling horizontally 40.5 m/s in the opposite direction.a. What is the impulse delivered to the ball by the racquet?b. What work does the racquet do on the ball?

A tennis player receives a shot with the ball (0.0631 kg) traveling horizontally at 53.7 m/s and returns the shot with the ball traveling horizontally 40.5 m/s in the opposite direction.

a. What is the impulse delivered to the ball by the racquet?

b. What work does the racquet do on the ball?