[dee_thomas]

Both dana and rachel push a heavy desk across the floor at the same time that glen and akemm pull on it. Dana and rachel exert the same forces. Glen pulls on the desk exerting a 150 N foce and akeem pulls exerting a 12 N force. There is also a 200 N friction force exerted on the desk. The net force exerted on the desk is 275 N and I need to know if the desk is moving with a constant velocity or is it speeding up and also what will happen after a few seconds if the boys stop pulling?

[Unknown008]

If there is a net force, what does Newton's first law say?

For the second part, use the net force to work out the force that Dana and Rachel apply. If the net force that Dana and Rachel apply is smaller than the force of friction, then the frictional force will be greater. What do you think will happen then?