MHT CET Physics question
A particle of mass 'm' moves along a circle of radius 'r' with constant tangential acceleration. If kinetic energy 'E' of the particle becomes three times by the end of third revolution after beginning of acceleration the magnitude of tangential acceleration is [MHT-CET 2021, MHT-CET 2021]
Answer: (D)
Solution
Taking the kinetic energy at the beginning of acceleration as E, the change is ; work done ma_t(3$×2π r)=6π
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