A man cycles up a hill rising 1 metre vertically for every 50 metres along the slope. Find the power of the man, if he cycles up at the rate of 3.6km/hr . The weight of the cycle and man is equal to 120kg . Neglect force of friction.
A
32.25watt
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B
24watt
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C
25.32watt
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D
52.32watt
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Solution
The correct option is B24watt F=mgsinθ=120×10×110P=f.v=120×10×150×3.6×516=120×10×150×3610×516=24wattHence,optionBiscorrectanswer.