### What is the velocity of third piece

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Q. A 90- water skier floating in a lake is pulled from rest to a speed of 13 in a distance of 30.

What is the net force exerted on the skier, assume his acceleration is constant?

Q. A cherry bomb explodes into three pieces of equal masses. One piece has an initial velocity of 15 m/s. another, piece has an initial velocity of 6 m/s(x), -5 m/s(y). What is the velocity of third piece?

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