calculate the work done by a person in lifting a load of 20 kg from the ground and placing it on age 1 m high table
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3
Work done = potential energy
There fore work done = mgh
20×10×1=200N
There fore work done = mgh
20×10×1=200N
Answered by
7
Work done = Change in potential energy
= mg (h₂ - h₁)
= 20 kg × 9.8 m/s² × (1 m - 0 m)
= 196 Joule
Work done to lift the load is 196 Joule
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