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A spring of force constant 800N/m has an extension of 5cm. The work done in extending it from 5cm to 15cm is

+1 vote
in JEE by kratos

A spring of force constant 800N/m has an extension of 5cm. The work done in extending it from 5cm to 15cm is

(1) 16J

(2) 8J

(3) 32J

(4) 24J

1 Answer

+6 votes
by kratos
 
Best answer

Correct option (2) 8J

Explanation:

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