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A billiard ball rolling across a table at 1.45 m/s makes a head-on elastic collision with...

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Physics

A billiard ball rolling across a table at 1.45 m/s makes ahead-on elastic collision with an identical ball. Find the speed ofeach ball after the collision when each of the followingoccurs.

(a) The second ball is initially at rest.

first ball    m/s
second ball    m/s


(b) The second ball is moving toward the first at a speed of 1.10m/s.

first ball    m/s
second ball    m/s


(c) The second ball is moving away from the first at a speed of0.90 m/s.

first ball    m/s
second ball    m/s

Answer & Explanation Solved by verified expert
3.8 Ratings (635 Votes)
During collision momentum is conservedInitial momentum Final momentumGiven that both balls are identical1Since collision is elastic kinetic energy    See Answer
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