Question

When two objects collide, the forces they exert on each other are best described as:

Options

• Unbalanced external forces

• Internal forces and an action-reaction pair

• External forces on the system

• Forces that only act along the common tangent

Answer 1

Internal forces and an action-reaction pair

Explanation:

The forces are internal to the system of two objects and satisfy Newton's Third Law as an equal and opposite action-reaction pair.