Question: ( 1 0 pts ) A 1 2 - kg projectile is launched with an initial vertical speed of 2 0 m s . It

(10pts) A 12-kg projectile is launched with an initial vertical speed of 20ms. It rises to a maximum height of 18 m above the launch point. What is the change in mechanical energy (work done by the dissipative (air) resistant force) on the projectile?
( 1 0 pts ) A 1 2 - kg projectile is launched

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