PE = mgh KE = 3 mv?
diving board
(A
The diving board in the picture is 10 meters high. The velocity of
the diver standing on the board is 0 m/s. The diver weighs 75 Kg.
(©
1. What is the total energy of the diver?
2. Find the diver's potential and kinetic energy at point B if he is 7.5 m above the water.
3. Find the potential and kinetic energy of the diver at point C (at the surface of the water).
4. Use the kinetic energy of the diver to find his velocity just before he enters the water.
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Answer is in the photo. I can't attach it here, but I've uploaded it to a file hosting. link below! Good Luck!

cutt.ly/Kzv78uJ

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation: