Question

What is reaction force?

How reaction force becomes zero during freefall?

What will be the effect in the weight of displaced water if load is added into the ship floating in the ocean? Also reason

Answer 1

Reaction force -- a force that acts in the opposite direction to an action force. Friction is the reaction force resulting from surface interaction and adhesion during sliding. Reaction forces and reaction moment are usually the result of the actions of applied forces........
Reaction force becomes zero during freefall...... because
a body during free fall possesses acceleration as well as mass. So, why is a freely-falling body