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A 2.0kg rubber ball is dropped from a height of 1.0m above the floor. a.       Using energy...

A 2.0kg rubber ball is dropped from a height of 1.0m above the floor.

a.       Using energy (not equations of motion), what is the ball’s speed just before it hits the floor?

b. If it then bounces back to a height of 0.70m, what is the speed of the ball, just as it leaves the ground? Again, use energy rather than equations of motion.

c.       How much kinetic energy is lost?

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