Homework Help: physics

Posted by Noah on Tuesday, December 18, 2012 at 3:00pm.

A 0.201-kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.105 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction. The speed of the 0.105-kg ball is 0.26 m/s. What is the new velocity of the 0.201-kg ball?

physics - Damon, Tuesday, December 18, 2012 at 3:16pm
conservation of momentum
.201 (.3) + .105 (.1) = .201 (v) + .105 (.26)

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