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Physics-

General

Easy

Question

Block A is placed over the block B as shown in figure. Wedge is smooth and fixed. Force of friction on block A is:

towards right
towards left
zero
always kinetic

The correct answer is: towards left

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If force F is increasing with time and at t=0, F=0 where will slipping first start?

If force F is increasing with time and at t=0, F=0 where will slipping first start?

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In the figure, $m subscript 1 end subscript equals m subscript 2 end subscript equals 10 text end text k g.$ The co-efficients of friction between A, B and B, surface are 0.2. Find the maximum value of $m subscript 3 end subscript$ so that no block slips (All the pullies are ideal and strings are massless).

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