Question

A stone falls from the top of a building and hits the ground at a speed of 32m/s. The air resistance-force on the stone is very small and may be neglected.
Calculate the time to fall.

Answer 1

initial velocity (u)=0
final velocity (v)=32
acceleration=g=10m/s^2

v=u+at
32=0+10t
t=3.2 sec

Answer 2

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