Question

a load of 200N is being moved up a slope of length 5m to a vertical height 3m find the energy lost

Answer 1

Weight ( W ) = 200 N

Displacement ( S ) = 5 m

Force ( F ) = 150 N

Workdone ( W ) = F x S = 150 x 5 = 750 J

Potential Energy ( P.E ) = m x g x h

m x g = 200 N , h = 3 m

Therefore, P.E = m x g x h = 200 x 3 = 600 J

Energy difference = 750 - 600 = 150 J

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