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.
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
2 answers
43.17
1 answer