What is the relationship between work and energy? What theorem explains this relationship? A man exerts a 328-N force in the direction of motion to move a box across a 3.55-m patch of ice. How much work does he do on the box? A sofa is pushed with a force of 485 N at an angle of 15.0" to the direction of the displacement of the sofa. If it is pushed 2.66 m, how much work is done on the sofa? A crane is used to lift a new air conditioner to the top of a building. The force used by the crane is upward and uniformly increases from 0.0 N when the air conditioner is on the ground to 856 N when the air conditioner is 15.3 m in the air. How much work is done by the crane? Sketch a graph to help you solve the problem. A woman lifted a stack of books using a uniform force of 155 N upward for 3.00 5. She raised the stack of books 1.50 m. What power does the woman use? Mike and Jos climb the same stairs at school. If the,r climb at the same speed, how is it possible that Mike is more powerful climbing the stairs than Jos