Question

A 0.060 kg tennis ball, moving with a speed of 7.10 m/s has a head-on collision...

A 0.060 kg tennis ball, moving with a speed of 7.10 m/s has a head-on collision with a 0.080 kg ball initially moving away from it in the same direction at a speed of 3.40 m/s. Assuming a perfectly elastic collision,

What is the velocity of the tennis ball after the collision? (Take the initial direction of the balls as positive.) m/s

What is the velocity of the 0.080 kg ball after the collision? m/s

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