Physics, 02.12.2021 14:00, bercishicicorbin

2 A ball X of mals 1 kg travelling at 2 m/s has a head-on collision with an identical ball Y at rest.
X stops and Y moves off. What is Y's velocity?
with mass 50 kg running at 5 m/s jumps on

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2 A ball X of mals 1 kg travelling at 2 m/s has a head-on collision with an identical ball Y at re...