Imagine the track in the Gizmo went on forever. If there were no friction, how long would it take the cart to stop after you turned off the fan? Explain.

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

For which pair of objects would adding the same a