A worker pushes a 50kg box on a level floor at constant velocity and moves a distance of 10 m.
a.) If the person pushes it with a force of 850N, what must be the magnitude and the direction of the frictional force on the surface?
b.) How much work is done on the box (1) by the worker and (2) by friction?
c.) How much work is done by the (1) normal force and (2) by gravity?
d.) What is the total work done on the box?
Pls pakisagutan po ng MAAYOS.
