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MHT CET Physics question

PhysicsWork, Energy and PowerMHT CET

The weight of a person is 60 kg, if he gets calories heat through food and the efficiency of his body is 25% then up to how much height he can climb nearly? (g = 10 m/s², J = J/kcal)

Answer: (B)

Solution

Useful work J ,

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Question ID VK-062826