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A rubber cord catapult has a cross-secti...

A rubber cord catapult has a cross-section area of `25mm^(2)` and the initial length of rubber cord is 10 cm . It is stretched by 5 cm and then released to project a missile of mass 5 g. Taking , ` Y_("rubber")= 5xx 10 ^(8) N//m^(2)` , velocity of the projected missile is

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The rubber cord of a catapult has cross-section area 1 mm^(2) and a total unstretched length 10 cm. It is stretched to 12 cm and then released to project a partical of mass 5 g. Calculate the velocity of projection (Y for rubber is 5xx10^(8)N//m^(2) )