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The relationship between the length of a spring and the force required to stretch the spring is shown below.

graph is #2 in word doc
What is the work done when the spring length is increased from 20 cm to 30 cm?
A.25 J
B.35 J
C.250 J
D.350 J

User Vikomall
by
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1 Answer

2 votes

Answer:

The answer is down below

Step-by-step explanation:

1)


f \alpha e


f = ke

where e is the extension

and k is the elastic constant

2)e=30-20=10cm

W=1/2Fe or 1/2ke²

User Irfan Ashraf
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