contestada

A 0.145-kg baseball is pitched at 42 m/s.the batter hits it horizontally to the pitcher at 58 m/s. find the change in momentum of the ball.

Respuesta :

P=MV
p1=0.145*42=6.09
P2=0.145*48=6.96
Difference= +0.9

ANSWER:

2.32

Reasoning:

Use p=mv

(0.145 kg) x (42 m/s) = 6.09

(0.145 kg) x (58 m/s) = 8.41

Take the difference

8.41 - 6.09 = 2.32