Question

1. You are trying to move a 500-N crate across a level floor. To start the crate moving, you have to pull with a 230-N horizontal force. Once the crate "breaks loose" and starts to move, you can keep it moving at constant velocity with only 200-N.
a. Draw a free-body diagram for crate just before it starts to move.
b. What forces are acting on the crate just before it starts to move?

Answer 1

Forces acting here are

mg which is the gravitational force

N normal force applied by the ground

f - frictional force

F - force applied