Kinetic energy can be calculated using the formula Ke = 1/2mv^2, where m is the mass of the object in kilograms and v is the velocity of the object in m/s.
Substitution follows:
Ke=1/2mv^2
Ke=1/2(72)((79)^2)
Ke=1/2(449,352)
Ke=224,676 or 225,000
The kinetic energy of the diver is equal to 225,000 kg•m/s^2, 225,000 Joules, or 225 kilojoules (all the same value).
