A (hypothetical) large slingshot is stretched 2.30 m to launched a 170 g projectile with speed sufficient to escape from Earth (11.2 km//s). Assume the elastic bands of the slingshot obey Hooke's law. What is the spring constant of the device if all the elastic potential energy is converted to kinetic energy?

A (hypothetical) large slingshot is stretched 2.30 m to launched a 170

1.	A (hypothetical) large slingshot is stretched 2.30 m to launched a 170 g projectile with speed sufficient to escape from Earth (11.2 km//s). Assume the elastic bands of the slingshot obey Hooke's law. What is the spring constant of the device if all the elastic potential energy is converted to kinetic energy?
Answer» `4.03 XX 10^(6) N//m` `2.02 xx 10^(6) N//m` `8.06 xx 10^(6) N//m` `6.09 xx 10^(6) N//m` ANSWER :A

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