.. The weight of the loaded sled isΒ 2200 N. The coefficient of friction isΒ 0.15. How hard must the dogs pull so that their effort just equals the frictional force? ... to move after the light changes from red to green A team of dogs pulls a sled across the snow. ... 2) pulling force of dogs fL = us N =Β 0.15Β x2200 = 330Β N
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