Question

A softball of mass 0.220 kg that is moving with a speed of 4.0 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 1.8 m/s.
a) Calculate the velocity of the target ball after the collision.
b) Calculate the mass of the target ball.
MAN WHY YOU THROWIN BALLS MAN I DON'T EVEN KNOW

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