Question

A rock falls off a cliff and hits the ground 5.0 seconds later. How high is the cliff? Show your work including your equation

Answer 1

122.5 m

Step-by-step explanation:

t = 5s

v₀ = 0 m/s

a = -9.8 m/s² (gravitation force)

s = 0 m

s = s₀ + v₀t + 1/2 at²

0 = s₀ + 0 +1/2(-9.8)(5)²

s₀ = 122.5 m