Home Physics Work, Energy, Power and Collision Conservative and Nonconservative Forces and Equilibrium A particle is taken from point A to point B …
Physics Work, Energy, Power and Collision Conservative and Nonconservative Forces and Equilibrium MCQ (Single Correct)

A particle is taken from point A to point B under the influence of a force. Now it is taken back from B to A and it is observed that the work done in taking the particle from A to B is not equal to the work done in taking it from B to A. If W nc and W c is the work done by non-conservative forces and conservative forces present in the system respectively, U is the change in potential energy, k is the change in kinetic energy, then choose the incorrect option.

A
W nc – U = k
B
W c = – U
C
W nc + W c = k
D
W nc – U = – k

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Text Solution

Verified by Experts
The correct answer is:
D

From work energy theorem

W C + W nC = Δ K, W C = – Δ U, W nC – Δ U = Δ K

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