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6. Parachute Jump
When a parachutist dives
out of an airplane, he hopes to meet a lot of air to
reduce his rate of fall! Why?
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| Without air (resistance),
his speed would increase due to the pulling force of the
earth. If he fell a large distance, imagine the speed
of his impact-ouch! Opening his parachute gives more air
resistance because the chute "catches" more air than just
his body alone. Air resistance gives an upward push opposite
to the direction of his body and chute, causing him to
slow down. The rate of his fall is decreased considerably
by the air resistance. |
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Refcon
P. O. Box 923
West Chester, OH 45071
TEL 513-777-8893
EMail: inns@justuseit.com
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