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Grade 11Mechanics

I request to plz give solution as quick as you can because it's really very important.

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Profile image of Mohit Nikhade
7 Years agoGrade 11
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1 Answer

Profile image of Arun
7 Years ago
 
 

in the reference frame of the sphere, there are two forces: g(downward gravity) and horizontal inertial force a,

let the particle slide an angle theta, Work done by the two forces=mRasinθ +mRg(1-cosθ)=mv2/2,

v2=2R(asin(theta)+g(1-cos(theta)), v=√(2R(asinθ+g(1-cosθ)))

 

in the end put a = g as given in the question