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After a 0.250-kg rubber ball is dropped from a height of 1.80 m, it bounces off a concrete floor and rebounds to a height of 1.45 m.

a)Determine the magnitude and direction of the impulse delivered to the ball by the floor.
magnitude? kg · m/s direction?

(b) Estimate the time the ball is in contact with the floor to be 0.06 seconds. Calculate the average force the floor exerts on the ball.
magnitude? direction?

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