Question

- An object of mass • 40 kg is raised to height of 5m obove the ground. What is potentiel energy? If the object is allowe find its when it fall half way Kinetic energy down, mess
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Answer 1

Pe= mgh

Pe= 40×10×5

=2000J

Ke=1/2 mv^2

Ke= 1/2 40 × v^2