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250 joules were spent in lifting a 10 kg weight to a height of 2 m. Calculate the acceleration with which it was raised. (Take g = 10 m/s2)
Asked by Topperlearning User | 09 Jul, 2014, 10:43: AM

Work done in lifting the weight = 250 J

Work done against the gravitational force = m(g + a)h
250 = 10 x (10 + a) x 2
10 + a = 12.5
a = 2.5 m/s2
Answered by | 09 Jul, 2014, 12:43: PM

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