suppose a skydiver (mass = 75 kg) is falling toward the earth. when the skydiver is 100 m above the earth he is moving at 60 m/s. at this point calculate the skydiver's
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To calculate the skydiver's kinetic energy, we need to use the formula:
Kinetic energy = 1/2 x mass x velocity^2
Given:
Mass of the skydiver (m) = 75 kg
Velocity of the skydiver (v) = 60 m/s
Now we can calculate the kinetic energy:
Kinetic energy = 1/2 x 75 kg x (60 m/s)^2
= 1/2 x 75 kg x 3600 m^2/s^2
= 1/2 x 75 kg x 129600 m^2/s^2
= 3888000 kg m^2/s^2
Therefore, the skydiver's kinetic energy when he is 100 m above the earth and moving at 60 m/s is 3888000 kg m^2/s^2.