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A 0.060-kg tennis ball, moving with a speed of 5.5 m/s , has a head-on collision...

A 0.060-kg tennis ball, moving with a speed of 5.5 m/s , has a head-on collision with a 8.5×10^−2-kg ball initially moving in the same direction at a speed of 2.5 m/s .

Assuming a perfectly elastic collision, determine the speed of each ball after the collision.

Determine the direction of the tennis ball after the collision.

Determine the direction of 8.5×10−2-kg ball after the collision.

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Answer #1

Conservation of linear momentum.

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