A mass hangs from the ceiling by a spring. It takes the mass 700 ms to...

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Physics

A mass hangs from the ceiling by a spring. It takes the mass 700ms to fall from its maximum height of 2.3m to its minimum height of1.6m above the floor.

(a) At what height above the floor does the mass have zeroacceleration?

(b) What is the maximum speed of this mass?

(c) If you start a timer ( t = 0) at the moment when the mass isfalling below a height of 1.9m, then at what time t will the massfirst reach a height of 2.1m?

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