Asked by Sara
A 2.30 kg block is initially at rest on a horizontal surface. A horizontal force ModifyingAbove Upper F With right-arrow of magnitude 4.92 N and a vertical force ModifyingAbove Upper P With right-arrow are then applied to the block (see the figure). The coefficients of friction for the block and surface are μs = 0.4 and μk = 0.25. Determine the magnitude of the frictional force acting on the block if the magnitude of ModifyingAbove Upper P With right-arrow is (a)9.00 N and (b)13.0 N. (The upward pull is insufficient to move the block vertically.)
Answers
Answered by
bobpursley
not understandable, sorry
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