Answer :
The kinetic energy of the diver just before he hits the ground is 6860 J.
What is kinetic energy?
Kinetic energy can be defined as the energy of a body due to its motion.
Note: Just before the diver hits the ground, the potential energy is converted into kinetic energy.
Formula:
- P.E(Potential energy) = K.E(Kinetic energy)
- K.E = mgh..................... Equation 1
Where:
- m = mass of the diver
- h = height of the board
- g = acceleration due to gravity.
From the question,
Given:
- m = 70 kg
- h = 10 m
- g = acceleration due to gravity.
Substitute these values into equation 1
- K.E = 70×10×9.8
- K.E = 6860 J
Hence, The kinetic energy of the diver just before he hits the ground is 6860 J.
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