1.

A machine delivers power to body which is proportional to instataneous velocity V of the body. If the body starts with a velocity which is almost negligible, then the distance covered by the body is directly proportional to V. Then find the value of n.

Answer»

Kinetic energy of the bloci is `(mv^(2))/50`
POWER delivered by th external agent is `(mav)/25`
TOTAL power delivered by the string is zero
Work DONE by the string on th block is NON zero

Answer :A::B::C::D


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