The diver at the top of a diving board has potential energy
I think it's gravitational potential
kinetic
The board stores energy as the diver jumps onto it, then returns the energy, which the diver may then use in addition to what he adds with his next jump. This will continue until he jumps away from the board, or until it breaks from attempting to store too much energy.
Yes!
No. It will accelerate the diver downward only.
Kinetic energy, and gravitational potential energy.
a diver smartass
While he's in the air, the reaction force is air resistance and when he's in the water the reaction force is upthrust. Hope this helps.
Gravity always acts as a pair of forces, not as one single force. The strength of the forces depends on both masses, not just one of them. The forces of gravity attract the diver toward the earth and the earth toward the diver. The forces are equal in both directions. If the diver weighs 150 pounds on earth, then the earth weighs 150 pounds on the diver. The diver accelerates toward the center of the earth with an acceleration equal to (weight)/(diver's mass), and the earth accelerates toward the diver with an acceleration equal to (weight)/(earth's mass). Has that helped, or just confused the issue further ?
While he's in the air, the reaction force is air resistance and when he's in the water the reaction force is upthrust. Hope this helps.
If there is any horizontal component to the diver's velocity, then that will cause a parabolic path instead of a straight line fall due to gravity.
If there is any horizontal component to the diver's velocity, then that will cause a parabolic path instead of a straight line fall due to gravity.
"8 seconds" is not a velocity.
he has potential energy