Question

Q.5 Louisa rolls a ball with 31N of force. She observes that it has a acceleration

of 2.1m/s2. What is the mass of the ball?

Answer 1

F = M a Newton's Second Law

M = F / a = 31 N / 2.1 m/s^2 = 14.8 kg

Rather heavy since 1 kg mass weighs about 2.2 lbs force