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- Apr 26, 2016
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OK I need some help on this problem. I know that work is only done in the X direction due to the F cos 30 component of both people, however it does say frictional surface. Doesn't the F sin 30 component (the y component) from person A increase the frictional force (Ff) in the x direction vs the person B who has no y component? Ff is going to be co-efficient of friction times Fnormal which is the weight plus the downward y component from F sin 30. At the very least I would say D, no enough information because we don't know the distance in X that the block was pushed.
Thanks