Two students push a wooden crate on a horizontal floor

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

Two students push a wooden crate on a horizontal floor. One pushes toward the east with a force of

40\,\text{N}

while the other pushes toward the west with a force of

60\,\text{N}

. What will be the net effect on the motion of the crate? (a) The crate will accelerate toward the west with

20\,\text{N}

net force. (b) The crate will remain at rest because the two pushes balance each other out. (c) The crate will accelerate toward the east with

20\,\text{N}

net force. (d) The crate will accelerate toward the west with

100\,\text{N}

net force.