Lizzieames18 Lizzieames18

23-05-2017
Physics

contestada

Cindy exerts a force of 40 N and moves a chair 6 m. Her brother and he pushes a different chair for 6 m while exerting a force of 30 N. Andy does: more, less work than Cindy. The difference of their amounts of work is: 20, 40, 60, or 180 Nm.

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kkeaeman kkeaeman

23-05-2017

Wa = F*d = 240J
Wb = 180 J

Andy does less work
Difference is 60J

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