A toy car of mass is initially moving due east with a velocity of

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A toy car of mass

0.50\,\text{kg}

is initially moving due east with a velocity of

2\,\text{m\,s}^{-1}

. It is then pushed so that it moves due west with a velocity of

3\,\text{m\,s}^{-1}

. Taking east as the positive

x

-direction, explain in not more than three sentences whether the magnitude of the car’s momentum has increased or decreased during this change.