A person pushes a 19.8-kg shopping cart at a constant velocity for a distance of 34.2 m on a flat horizontal surface. She pushes in a direction 24.4 degrees below the horizontal. A 50.4-N frictional force opposes the motion of the cart.
(A) : What is the magnitude of the force that the shopper exerts?
(B) : Determine the work done by - the pushing force
- the frictional force
- the gravitational force