Question

calculate the work done by person in lifting a load of 20 kg from the ground and placing it in 1 metre high on the table...
( answer should be 196J)
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Answer 1

Answer:

196.3 J

Explanation:

Weight given = 20 Kg

Force = (20 * 9.8) N = 196.3

Displacement = 1 m

Work done = ( 196.3 * 1) J = 196.3 J.

Answer 2

Answer:

work =mgh

= 20×9.8×1

= 196 J