a man wieghing 60 kg is ascending a ladder 10 m long making an 30° with the horizantel. the work done by him against gravity is (g=9.8ms—2)
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Answer:
5092J(approximately)
Explanation:
W=FSCos(theta)
W= mgscos(theta)
W=60×9.8×10×cos30degrees
W=60×98×1.732
W=5092.2J
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