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Question

For $$F_1= 150N$$ and $$F_2 = 100 N$$, find the direction and magnitude of friction force acting on the block.
989113_2a8d2e3e32624576990b8b7938860193.png


A
90 N, making an angle of tan1(25) with the horizontal in the upward direction.
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B
75 N, making an angle of tan1(25) with the horizontal in the upward direction.
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C
107.7 N, making an angle of tan1(25) with the horizontal in the upward direction.
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D
Zero.
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Solution

The correct option is B 75 N, making an angle of $$tan^{-1}\Big(\dfrac{2}{5}\Big)$$ with the horizontal in the upward direction.
1700328_989113_ans_45ef7913730e4957a9cf94a48300c58f.jpg

Physics

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