Asked by q

A 47.0 g golf ball is driven from the tee with an initial speed of 54.0 m/s and rises to a height of 23.2 m.
(a) Neglect air resistance and determine the kinetic energy of the ball at its highest point.
What is its speed when it is 9.0 m below its highest point
Answered by bobpurslley
You know the initial KEnergy, and the initial PEnergy. You know the PEnergy at the highest point, and also the PEnergy nine meters below that.

Conservation of energy:
InitialPE+InitialKE=finalPE+finalKE

Use that to find the answers.
Answered by Anonymous
43.17
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