Question

29. The potential energy of a certain spring when stretched
through a distance 'S is 10 joule. The amount of work
(in joule) that must be done on this spring to stretch it
through an additional distance 'S' will be
(a) 30
(b) 40
(c) 10
(d) 20​

Answer 1

Answer:

option d is correct.......

Answer 2

Explanation:

Option a..................