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Annapetrik
01.02.2022 •
Physics
Two billiard balls with identical masses and moving in
opposite directions have a 100 % elastic (perfect bounce)
head-on collision. Before the collision, each ball has a
speed of 21.9 cm/s. Find the speed of each billiard ball
immediately after the collision.
(hint: total mo = o before they collide)
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