MCAT Physical : Newton's Laws

Example Questions

Example Question #1 : Newton's Laws

ball is rolled into a stationary ball. If the heavier ball applies a  force on the smaller ball, what force will the smaller ball apply on the large ball?

Explanation:

The answer to this question lies within Newton's third law: for every action, there is an equal and opposite reaction. If the large ball applies a  force on the smaller ball, the smaller ball will apply a  force on the large ball in the opposite (negative) direction.

Example Question #2 : Newton's Laws

A 1kg plate falls from a shelf 1m above the ground and breaks into three pieces of mass 0.1kg, 0.4kg and 0.5kg. What is the total energy of the scattered pieces?

We must know the shape of the plate to solve

We must know the velocity of each piece to solve