A 50-kg object with a speed of 40 ms collides head on with, Ask an Expert

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A 5.0-kg object with a speed of 4.0 m/s collides head on with a 10-kg object moving toward it with a speed of 3.0 m/s. the 10-kg object stops dead after the collision.

(a) what is the post-collision speed of the 5.0-kg object?

(b) Is the collsion elastic?

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