A soldier is standing on top of a building, 13.5 m above the…

Questions

A sоldier is stаnding оn tоp of а building, 13.5 m аbove the ground. He tosses a 4.6 kg hand grenade straight up at 5.6 m/s, trying to hit an enemy helicopter that is flying overhead. He misses, and the grenade falls toward the ground. If air resistance is negligible, how fast is the grenade moving when it is 1.2 m above the ground? YOU MUST USE ENERGY CONCEPTS/EQUATIONS TO SOLVE. YOU WILL NOT RECEIVE FULL CREDIT IF YOU SOLVE IT OTHER WAYS.

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