stowen7sch0illie stowen7sch0illie

05-06-2017
Physics

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If you push on a heavy box that is at rest, you must exert some force to start its motion. 5. however, once the box is in motion you need a smaller force to maintain that motion. why?

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johnnyphil4 johnnyphil4

15-06-2017

The potential energy has turned into kinetic energy and energy is not lost on the box, some is lost to friction, but most of it is still kept.

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