Questions
A rough vertical board has an acceleration 'a' so that a 2kg block pressing against it does not fall. The coefficient of friction between the block and the board should be:
detailed solution
Correct option is A
For block mg = f and N = maBut f≤μN, so mg≤μma⇒μ≥g/aTalk to our academic expert!
Similar Questions
A person just holds a block weighing 2kg between his hands & just keeps it from falling down by pressing it with his hands. If the force exerted by each hand horizontally is 50N, the coefficient of friction between the hand & the block is
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