Question

Two billiard balls with identical masses and sliding in opposite directions have an elastic head-on collision. Before the collision, each ball has a speed of 23 cm/s. Find the speed of each billiard ball immediately after the collision.

Ball 1 =

cm/s

Ball 2 =

cm/s

Answer #1

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Two billiard balls of identical mass move towards each other and
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A. v1,f= - 15.0 cm/s; v2,f= + 20.0 cm/s
B. v1,f= -10.0 cm/s; v2,f= + 20.0 cm/s
C. v1,f= +20.0 cm/s; v2,f= + 15.0 cm/s
D. v1,f= - 20.0 cm/s; v2,f= +15.0 cm/s

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