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An elastic string of unstretched length  and force constant  is stretched by a small length . It is further stretched by another small length . The work done in the second stretching is

a)

b)

c)

d)



Question ID - 52073 | SaraNextGen Top Answer

An elastic string of unstretched length  and force constant  is stretched by a small length . It is further stretched by another small length . The work done in the second stretching is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

Elastic force in string is conservative in nature

 where  work done by elastic force of string

 or 

or 

The work done against elastic force is

127 votes


127