Question

A solid sphere of mass m is lying at rest on a rough horizontal surface. The coefficient of friction between the ground and sphere is μ. The maximum value of F, so that the sphere will not slip, is equal to______

Answer 1

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Answer:

f≤μmg⇒F=72umg

EXPLANATION

P

FR = IPa

⇒FR=(75MR2)α

⇒Rα=5F7M=a

F−f=Ma⇒f=27F

f≤μmg⇒F=72umg