A 2g marble is fired vertically upward using a springgun. The spring must be compressed 3.2cm if the marble is tojust reach a target 10 m above the marble's position on thecompressed spring.
A) what is the change in gravitational PEof the marble-Earth system during the 10m ascent?
B) what is the change in elastic PE of the spring during itslaunch of the marble?
C) what is the spring constant?