A body of mass m falls from rest at a height y If the drag...
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Physics
A body of mass m falls from rest at a height y If the drag resisting force of air is assumed to be proportional to the instantaneous velocity v of the body Use k as the proportionality constant and take y 0 at ground level 1 Find the height of the body y as a function of its velocity v 2 Find the height of the body y as a function of time t 3 Assuming that g 9 81 m s m 1 kg y height of the body 20 seconds after it starts 2000 m and k 0 01 calculate the falling
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