How much momentum does a .01 kg ping pong ball have if it is traveling at 25 miles/hour? (1.609km=1 mile)

Answer 1

V=25mi/h * 1609m/mi * 1h/3600s=11.17 m/s

Momentum = m*V = 0.01 * 11.17 = 0.1117
m-m/s.