- #1
alfredo24pr
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Homework Statement
A 0.245 kg ball is thrown straight up from 2.20 m above the ground. Its initial vertical speed is 12.40 m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time.
Homework Equations
1/2m(v initial)2 + mg(h initial) = 1/2m(v final)2 +mg(h final)
The Attempt at a Solution
I know that y max equals v initial 2 /2g which is 7.84, but I do not know how to use the 2.2 which is the initial height