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Q.

A monkey is descending from the branch of a tree with constant acceleration. If the breaking strength is 75% of the weight of the monkey, the minimum acceleration with which monkey can slide down without breaking the branch is

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a

3g4

b

g4

c

g2

d

g

answer is C.

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Detailed Solution

Let T be the tension in the branch of a tree when monkey is descending with acceleration a. Then  mg – T = ma; and T = 75% of weight of monkey

=75100mg = 14mg or a=g4

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