A monkey of mass m is climbing a rope hanging from roof with acceleration a . coefficient of static

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4-2.Friction

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A monkey of mass $m$ is climbing a rope hanging from the roof with acceleration $a$. The coefficient of static friction between the body of the monkey and the rope is $\mu$. Find the direction and value of friction force on the monkey.

Adownward, $F=m(g+a)$

BUpward, F $= mg$

CUpward, $F=m(g+a)$

Ddownward, $F = mg$

Solution

Monkey is moving up due to friction force
$f_r-m g=m a$
$f_r=m(a+g)$
towards up.

Standard 11

Physics

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