A ball falls from height of 20.0 m, hits the floor, and rebounds vertically upward to height of 15.0 m. Assume that mball = 0.265 kg. (a) What is the impulse (in kg · m/s) delivered to the ball by the floor? magnitude ??? kg · m/s direction ---Select--- right left up down (b) If the ball is in contact with the floor for 0.0400 seconds, what is the average force (in N) the floor exerts on the ball? magnitude ??? N direction---Select--- right left up down

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