FrictionHard
Question
A horizontal force of 10 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is 0.2. The weight of the block is
Options
A.20 N
B.50 N
C.100 N
D.2 N
Solution
Weight of the block = μR = 0.2 × 10 = 2N.
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