A ball of mass is moving due east with a speed of

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

A ball of mass

0.2\,\text{kg}

is moving due east with a speed of

10\,\text{m/s}

. After a constant horizontal force acts on it for

0.5\,\text{s}

, the ball moves due east with a speed of

4\,\text{m/s}

. In which direction did the force act? (a) Due east (b) Due west (c) Due north (d) The force was zero