A Spring-Powered Dart Gun Is Unstretched and Has a Spring

A spring-powered dart gun is unstretched and has a spring constant 100 N/m. The spring is compressed by 8.00 cm and a 5.00 gram projectile is placed in the gun. The maximum height of the projectile when it is shot straight up from the gun is

A) 7.57 m.
B) 7.00 m.
C) 6.53 m.
D) 6.00 m.
E) 5.50 m.

Correct Answer:

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