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PLEASE ANSWER #1 AND #2 (1) In a common but dangerous prank, a chair is pulled...

PLEASE ANSWER #1 AND #2

(1) In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor. Suppose the victim falls by 0.50 m, the mass that moves downward is 70 kg, and the collision on the floor lasts 0.088 s.

(a) What is the magnitude of the impulse acting on the victim from the floor during the collision?

(b) What is the magnitude of the average force acting on the victim from the floor during the collision?

(2) A body of mass 3.4 kg makes an elastic collision with another body at rest and continues to move in the original direction but with one-fourth of its original speed.

(a) What is the mass of the other body?

(b) What is the speed of the two-body center of mass if the initial speed of the 3.4 kg body was 5.3 m/s?

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