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A 45 kg ice skater at rest caught a 0.25kg ball, If the ice skater moved at 0.15 m/s after catching the ball, find the speed of the ball before he caught it.

Respuesta :

MathPhys

Answer:

27 m/s

Explanation:

Momentum is conserved.

Initial momentum = final momentum

(0.25 kg) v = (45 kg + 0.25 kg) (0.15 m/s)

v ≈ 27 m/s