# What Is Deceleration?

Deceleration is the opposite of acceleration. Acceleration speeds up an object. Deceleration slows that object down. It's like slowing down on a bike or in a car. The vehicle looses speed.
Q&A Related to "What Is Deceleration"
 1. Subtract the ending speed from the starting speed. 2. Convert the speed difference to units of speed that are compatible with the acceleration you will calculate. Acceleration http://www.ehow.com/how_6081657_calculate-decelera...
 Deceleration:1:a decrease in rate of change; 2:physics) a rate of decrease in velocity; 3:the http://www.chacha.com/question/what-is-deceleratio...
 deceleration: a decrease in rate of change; (physics) a rate of decrease in velocity; the act of decelerating http://www.kgbanswers.com/what-is-a-deceleration/1...
de·cel·er·ate
[dee-sel-uh-reyt]
VERB (USED WITH OBJECT) [DE·CEL·ER·AT·ED, DE·CEL·ER·AT·ING.]
1.
to decrease the velocity of: He decelerates the bobsled when he nears a curve.
2.
to slow the rate of increase of: efforts to decelerate inflation.
VERB (USED WITHOUT OBJECT) [DE·CEL·ER·AT·ED, DE·CEL·ER·AT·ING.]
3.
to slow down: The plane decelerated just before landing.
Source: Dictionary.com
Deceleration is when motion is slowed down to a stop. Using a car as an example - you press the gas pedal to accelerate and then press the brake pedal to cause deceleration. ChaCha!
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