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The Rubber Cord Of A Catapult Has A Cross-sectional Area 1.0mm² And Total Unstretched Length 10cm. It Is Stretched To 12cm And Then Released To Project A Missile Of Mass 5g. Calculate The Velocity Of Projection Taking Youngs Modules For The Rubber As 5×10 N/M - Math Discussion

The rubber cord of a catapult has a cross-sectional area 1.0mm² and total unstretched length 10cm. it is stretched to 12cm and then released to project a missile of mass 5g. calculate the velocity of projection taking youngs modules for the rubber as 5×10 N/M