Calculating Speed of Dropped Baseball Using Conservation of Energy Method

[Trecero]

Please help! Physics Qyestion!

1. A 145g baseball is dropped from a tree 13.0m above the ground. Using a conservation of energy method, find the speed of the ball just as it hits the ground. Ignore air resistance.



2. Sum Of Ei = Sum Of Ef. That is about as far as i got.



3. I don't know where to start!

 

[kuruman]

Can you find expressions for the initial and final energies? What is each term the sum of?

 

[Trecero]

Ok thanks i got it now!