Question

32. Which of the following statement is correct about non-conservative force? (a) it depends on velocity of the object. (b) It depends on the particular path taken by the object. (c) It depend on the initial and final positions of the object. (d) Both(a) and (b) l​

Answer 1

Answer:

OPTION A

Explanation:

MAY BE THE CORRECT ANSWER

Answer 2

A) It depends on velocity of the object is the correct statement about an non-conservative force. A non-conservative force is one for which the work done depends on the path.

Explanation:

• Despite conservation of total energy, non-conservative forces can arise in classical physics due to neglected degrees of freedom or from time-dependent potentials.
• Many non-conservative forces may be perceived as ,macroscopic effects of small-scale conservative forces.
• For macroscopic systems the non-conservative approximation is far easier to deal with than millions of degrees of freedom.
• If the work done by a force depends not only on initial and final positions, but also on the path between them, the force is called a non-conservative force.
• Examples of non-conservative forces are friction and non-elastic material stress.