Question

Kevin drops a pile of roof shingles from the roof 8.52 meters above the ground.

Determine the time it takes for the shingles to reach the ground?

Answer 1

Here, the acceleration of shingles is a=g=9.8m/s2, Initial velocity of it is u=0m/s and distance traveled S=8.52mLet t be the required time for the shingles to reach ground. Using formula S=ut+at2/2we get, 8.52=0(t)+0.5(9.8)t2⟹ t=1.32s