Answer to Question #1402 in Mechanics | Relativity for kolton

Question

A 6 kg cart is pulled on a level surface at a constant velocity of 2 m/sec by a constant force of 10 N. What is the acceleration? What is the frictional force opposing the motion?

Answer 1

If the speed is constant, the acceleration is equal to zero.
If the acceleration is absent, all the forces are balanced. So, the friction force is equal to 10 N.