MHT CET Physics question

Physics Work, Energy and Power MHT CET

A vehicle accelerates from speed 'V' to '2V'. Work done during this is [MHT-CET 2020]

(A)Less than the work done in accelerating it from rest to V
(B)Four times as the work done in accelerating it from rest to V
(C)Same as the work done in accelerating it from rest to V
(D)Three times as work done in accelerating it from rest to VCorrect

Answer: (D)

Solution

while , so

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Question ID VK-062431