Question

A large building has an inclined roof. The length of the roof is 45.5 m and the angle of the roof is 20.0° below horizontal. A worker on the roof lets go of a hammer from the peak of the roof. Starting from rest, it slides down the entire length of the roof with a constant acceleration of 3.35 m/s². After leaving the edge of the roof, it falls a vertical distance of 28.0 m before hitting the ground.

(a)

How much time, in seconds, does it take the hammer to fall from the edge of the roof to the ground?

s

(b)

How far horizontally, in meters, does the hammer travel from the edge of the roof until it hits the ground?

Answer 1