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Terminal velocity

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Terminal Velocity
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terminal velocity

 
Use Terminal velocity in a Sentence
–noun
1. Physics.
a. the velocity at which a falling body moves through a medium, as air, when the force of resistance of the medium is equal in magnitude and opposite in direction to the force of gravity.
b. the maximum velocity of a body falling through a viscous fluid.
2. Rocketry, Ballistics.
a. the greatest speed that a rocket, missile, etc., attains after burnout or after leaving the barrel of a gun.
b. the speed of a missile or projectile on impact with its target.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Terminal Velocity
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Encyclopedia

terminal velocity

steady speed achieved by an object freely falling through a gas or liquid. A typical terminal velocity for a parachutist who delays opening the chute is about 150 miles (240 kilometres) per hour. Raindrops fall at a much lower terminal velocity, and a mist of tiny oil droplets settles at an exceedingly small terminal velocity. An object dropped from rest will increase its speed until it reaches terminal velocity; an object forced to move faster than its terminal velocity will, upon release, slow down to this constant velocity.

Learn more about terminal velocity with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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