Answer: . W= (1/2)ke2
Explanation:
Work done in extending or compression of a spring
Average force = initial force + final force /2
Ave force = 0+ F/2
= 1/2F
Work done = 1/2F × e
Work done = 1/2Fe ......... equation 1
Recall from Hooke's law, F= ke ......... equation 2
Where k is the elastic constant
Put ( 2 ) into ( 1 )
W = 1/2ke2
where e is the distance of extension or compression
F is the applied force
