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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What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

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