A roofer climbs to the top of a church steeple to determine its height. He drops his hammer and observes that it takes 2.0 sec. to strike the ground below. How high is the steeple?

Answer 1

V_i = 0 (hammer is DROPPED)

a = g = 9.81ms^-2

t = 2s

d = ?m

d = V_it + 1/2gt²

Plug in the values and find d. you answer should be approximately 20m