Question

A 25 kg rock falls for 2.7 seconds. How many meters tall was the

building?
Assume no air resistance, answer using two place values

Answer 1

35.72 m

Step-by-step explanation:

Given:

v₀ = 0 m/s

a = 9.8 m/s²

t = 2.7 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (0 m/s) (2.7 s) + ½ (9.8 m/s²) (2.7 s)²

Δx = 35.72 m