marvinb000 marvinb000

20-10-2017
Mathematics

contestada

A 20.0 kg sled is being pulled across a horizontal surface at constant velocity. The pulling force has a magnitude of 80.0N and is directed at an angle of 30.0º above the horizontal. Determine the coefficient of kinetic friction.

Respuesta :

ejelonubenedict ejelonubenedict

20-10-2017

U = F/R = 80/200cos30
u = 80/100√3
u= 0.46

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