Question

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

Answer 1

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