Work Energy and Power - Result Question 17

19. The potential energy of a system increases if work is done

[2011]

(a) upon the system by a non conservative force

(b) by the system against a conservative force

(c) by the system against a non conservative force

(d) upon the system by a conservative force

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Answer:

Correct Answer: 19. (d)

Solution:

  1. (d) When work is done upon a system by a conservative force then its potential energy increases.