A spring of force constant k is stretched by a small length ' x .The work done in stretching a further by a small length 'y' is (A) `(1)/(2)k(x^(2)+y^(2))` (B)`(1)/(2)k(x+y)^(2)` (C)`(1)/(2)k(y^(2)+x^(2))`(D) `(1)/(2)ky(2x+y)`

STATEMENT-1: An elastic spring of force constant k is stretched by a small length x. The work done in extending the spring by a further length x is 2kx^(2) . because STATEMENT-2: The work done in extending an elastic spring by a length x is proportional to x^(2) .

An elastic spring of unstretched length L and spring constant K is stretched by a small length x. It is further stretched by another small length y. the work done in second stretcing is

Two spring of force constants K_(1) and K_(2) (K_(1)gtK_(2)) are stretched by same force. If W_(1) and W_(2) be the work done stretching the spring then……..

The orthocentre of triangle formed by lines x+y-1=0, 2x+y-1=0 and y=0 is (h, k), then (1)/(k^(2))=

An elastic spring of unstretched length L and force constant K is stretched by amoun t x .It is further stretched by another length y The work done in the second streaching is