Question

d. Calculate the work done in lifting a 10kg bag to a shelf 500cm high, in S.I unit.
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Answer 1

Answer:

The work will be done against the gravity.

Hence, the work done on the laptop will be equal to the change in its gravitational potential energy.

Mass of laptop = 10 kg

Height of the shelf = 1.5 m

Acceleration due to gravity = 9.8 {m}{s^2}

s Work done on the laptop = mass × gravity × height

Work done = 10 × 1.5 × 9.8

JoulesWork done = 147 Joules

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