Question

a) The weight of the parachutist is 600N. Calculate the acceleration of the parachutist when the air
resistance is 200N.

b) Explain, in terms of the forces involved, why:
(i) the parachutist reaches a terminal velocity at t = 30s
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(ii) the parachutist decelerates when the parachute opens
(iii) the second terminal velocity, when the parachute is open, is smaller than the first

Answer 1

Answer:

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The Physics Classroom » Multimedia Studios » Newton's Laws » Skydiving

Skydiving

Observe the motion of the skydiver below. As the skydiver falls, he encounters the force of air resistance. The amount of air resistance is dependent upon two variables:

The speed of the skydiver

As a skydiver falls, he accelerates downwards, gaining speed with each second. The increase in speed is accompanied by an increase in air resistance (as observed in the animation below). This force of air resistance counters the force of gravity.

Answer 2

Answer:

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