Question

A girl is pushing on a crate with a force as great as the force of friction between the crate and the floor (see figure). Which one of the following is correct?

• A. The net force on the crate is zero
• B. The crate may be at rest or just start sliding
• C. The crate must not be accelerating
• D. All of the above

Answer 1

The correct option is D All of the above

Given, Force applied by girl$=$frictional force between ground and crate.
So, net force on the crate$=$0.
Because the force applied by girl$=$frictional force. So,the crate may be at rest or just start sliding without and not accelerating.