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Grade 11IIT JEE Entrance Exam

How a=g/4 in monkey problem.A monkey is descending from the branch of tree with constant acceleration. If the breaking strength of branch is75% of weight of monkey, minimum acceleration with which monkey can slide without breaking branch is

Harshada

8 Years agoGrade 11

1 Answer

Arun

6 Years ago

The monkey is descending

let m be mass of monkey

T be tension

a be acceleration

So

mg - T = ma

Now here breaking strength is given that is maximum tension

As mg - T = ma

So if T is maximum and u are subtracting it with mg it would give least value of ma that is minimum acceleration

T = 75 % of mg

so mg - 75% of mg = ma

25% of mg = ma

mg/4 = ma

g/4 = a

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