Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The ball rolled because an unbalanced dropped it causing it to roll.
The balls are gonna have a race!,BUT they need a force to push them to start.
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. So, the mans ball will go a greater distance than the womans because put more force into it.
Newtons third of motion:: For every action, there is an equal and opposite reaction.The woman is about to tip of the boat and the boat is about to as well.