A block of mass m is moving with a constant acceleration ‘a’ on a rough plane. If the…
Physics · JEE Advanced · NTA Exams — Work, Energy and Power
A block of mass m is moving with a constant acceleration ‘a’ on a rough plane. If the coefficient of friction between the block and the ground is μ, the power delivered by the external agent after a time t from the beginning is equal to
- ma2t
- mgat
- m(a + g)gt
- m(a + g)at
Answer
(D) m(a + g)at
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