A tennis ball initially moves with a velocity of 31.0 m/s horizontally to the ri

Question

A tennis ball initially moves with a velocity of 31.0 m/s horizontally to the right. A tennis racketstrikes the ball, giving it a velocity of 31.0 m/s to the left. Treat the collision as elasticand the ball and racket as particles of mass 0.0560 kg and 0.277 kgrespectively.
(b) What is the value of the total momentum of the system?
kg · m/s

(c) Find the initial velocity of the racket.
m/s to the left A tennis ball initially moves with a velocity of 31.0 m/s horizontally to the right. A tennis racketstrikes the ball, giving it a velocity of 31.0 m/s to the left. Treat the collision as elasticand the ball and racket as particles of mass 0.0560 kg and 0.277 kgrespectively.
(b) What is the value of the total momentum of the system?
kg · m/s

(c) Find the initial velocity of the racket.
m/s to the left

Explanation / Answer

Total momentum of the system p = m v                                    =    m1 v1 + m2 v2                                  = 0.0560 kg ( 31.0 m/s ) + 0.277 kg ( 31.0 m/s )                                 = 10.323 kg m/s Initial velocity of racket is m1 v 1 = ( m1 +m2 ) v2                               v1 =  ( m1 + m2 )v2 / m1                                    = ( 0.0560 kg +0.277 kg ) 31.0 m/s / 0.0560kg                      calculatethe above to get solution

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