Questions
The minimum acceleration that must be imparted to the cart in the figure so that the block A will not fall (given is the coefficient of friction between the surfaces of block and cart) is given by:
detailed solution
Correct option is B
The friction force on the block will prevent the block from falling it.From figure: N = ma and F = mg ⇒ μN = mg ⇒ μma = mg ⇒ a = gμTalk to our academic expert!
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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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