A spring when stretched by $2 \,mm$ its potential energy becomes $4 \,J$. If it is stretched by $10 \,mm$, its potential energy is equal to
A spring when stretched by $2 \,mm$ its potential energy becomes $4 \,J$. If it is stretched by $10 \,mm$, its potential energy is equal to
$4 \,J$
$54 \,J$
$415\, J$
None
A spring when stretched by $2 \,mm$ its potential energy becomes $4 \,J$. If it is stretched by $10 \,mm$, its potential energy is equal to
$U = \frac{1}{2}k{x^2}$ if $x $ becomes $ 5$ times then energy will become $25 $ times i.e. $4 \times 25 = 100\,J$