The rubber cord of a catapult has cross section area 1 mm

Last updated: 6/7/2023

The rubber cord of a catapult has cross section area 1 mm 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 5 x 108 N m 1 5 ms 2 10 ms 3 20 ms 4 40 ms