Laws Of Motion Question 273

Question: 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

Options:

A) g

B) 3g4

C) g4

D) g2

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Let T be the tension in the branch of a tree when monkey is descending with acceleration a.

Then mgT=ma ;

and T=75 of weight of monkey

ma=mg(75100)mg=(14)mg or a=g4.



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