Question

if an engine supplies 100J of energy to a weight of 200g, how high it can be lifted​

Answer 1

The total work done should remain conserved.( Work Energy Theorem)

Therefore the work done by the engine must be conserved in the form of potential energy in the block.

Work done by engine = increase in potential energy.

100 = mass × g × height

100 = 0.2 ( kg ) × 9.8 ( m/ s^2 ) × H

H = 100 / (9.8 × 0.2)

H = 100 / 1.96

H = 51.02 m

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