define deceleration??????????????
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De-acceleration or retardation is the rate of decrease in velocity. It is exactly opposite of the acceleration. In acceleration there in a increase in velocity but in this case there is decrease in velocity. If the acceleration of a body is -10 m/s^2 then in terms of retardation or deacceleration we will write it 10 m/s^2.
The SI unit of de-acceleration is same as that of acceleration i.e. m/s^2 and its unit in CGS system is cm/s^2.
Originally answered by me at - https://brainly.in/question/5591878#readmore
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Answer:
if the velocity of a body decreases it is said to be decelerated
Explanation:
it decreases due to friction
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