Q46 of 54 Page 135

A machine lifts an object of 40 kg mass up to the height of 10 m, then calculate the work done. (g = 9.8 m/s₂).

Mass of object (m) = 40 Kg

Height (h) = 10 m

Work done(W) = F × s

W = 40 × 9.8 × 10

W = 3920 J

Hence, the work is 3920 J.

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A machine lifts an object of 40 kg mass up to the height of 10 m, then calculate the work done. (g = 9.8 m/s2).