Question

Calculate Earth's force of gravity on each of two steel balls of masses 6.0kg and 12.0kg

I the forces of gravity on the 12-kg ball is greater than that on the other ball, why do the two balls accelerate at the same rate when dropped?

Answer 1

The weight force (in newtons) is the mass (in kg) multiplied by the acceleration of gravity (g), which is 9.8 m/s^2.

The 6.0 kg mass weighs 58.8 N and the 12.0 kg mass weights 117.6 N.

Different masses accelerate at the same rate because
accleration = Weight/Mass = g

Answer 2

Any my text book for the 12.0kg steel ball it says the answer is 1.2*10^2N, not 117.6N how did they get that answer?