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12 September, 09:26

A 55.0-kg skydiver free falls for a period of time before opening his parachute. What is his kinetic energy when he reaches a velocity of 16.0 meters/second?

7,040 J

440 J

539 J

cannot be determined without knowing his height above the ground

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Answers (2)
  1. 12 September, 09:49
    0
    The answer is that it would be 539 j I think
  2. 12 September, 09:54
    0
    Given:

    Mass of the skydiver:55 Kg

    Velocity of the skydiver (v) : 16m/s

    Kinetic energy = 1/2mv^2

    Kinetic energy = 1/2 (55x16x16)

    Kinetic energy = 7040J
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