Consider a gravity-free hall in which an experimenter of mass 50 kg is resting on a t kg pillow, 8 ft above the floor of the hall. He pushes the pillow down so that it starts falling at a speed of 8 ft/s. The pillow makes a perfectly elastic collision with the floor, rebounds and reaches the experimenter's head. find the time elapsed in the process.

Consider a gravity-free hall in which an experimenter of mass 50 kg is

1.	Consider a gravity-free hall in which an experimenter of mass 50 kg is resting on a t kg pillow, 8 ft above the floor of the hall. He pushes the pillow down so that it starts falling at a speed of 8 ft/s. The pillow makes a perfectly elastic collision with the floor, rebounds and reaches the experimenter's head. find the time elapsed in the process.
Answer» Consider a gravity-free hall in which an experimenter of mass 50 kg is resting on a t kg pillow, 8 ft above the floor of the hall. He pushes the pillow down so that it starts falling at a speed of 8 ft/s. The pillow makes a perfectly elastic collision with the floor, rebounds and reaches the experimenter's head. find the time elapsed in the process.

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