Formula for kinetic energy:
K = ½mv²
Given:
v = 1.4 m/s
m = 71 kg
K = ½ · 71.0 kg · (1.4 m/s)²
K = 35.5 kg · 1.96 m²/s²
K = 69.58 J
3.6m questions
4.7m answers