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प्रश्न
A woman pulls a bucket of water of total mass 5 kg from a well which is 10 s. calculate the power used by her.
संख्यात्मक
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उत्तर
Given mass = 5kg, height = 10m, time = 10s
Power = `"mgh"/"t" = (5 xx 10 xx 10)/10` 50 watt
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