When 1 N forceis applied increase in length ofthe springis 1 cm . Find elastic potential energystoredduringthis in it .

When 1 N forceis applied increase in length ofthe springis 1 cm . Find

1.	When 1 N forceis applied increase in length ofthe springis 1 cm . Find elastic potential energystoredduringthis in it .
Answer» `10 xx10^(-3)J ` `10^(-3)` J `5XX10^(-3) J ` `20 xx10^(-3) J ` Solution :From ` F = - kx , k = F/x1/(10^(-2)) = 10^(2) `N/m (neglectingnegativesign ) ` U = 1/2 kx^(2) = 1/2 xx10^(2) XX (10^(-2))^(2)` ` = 5xx10^(-3) J ` .