A conservative force of 5 N causes a body to move 2 m in the direction of the force. The change of the body’s potential energy associated with the force is:
(a) zero,
(b) +10 J,
(c) -10 J, (d) infinite.

Let’s say the force is pushing the body for 2m, there must be a change in KE. But, for change of KE, there must be change in PE.
I don’t understand this. Can you explain to me how W=DKE=DPE?


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