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CBSE Class 9 Answered

Why time is stated twice , while stating acceleration
Asked by sauravluvatifaslam00 | 08 Sep, 2018, 05:00: PM
answered-by-expert Expert Answer
Acceleration is rate of change of velocity. 
 
rightwards double arrow a equals space v over t
While velocity is rate of change of displacement. 
 
rightwards double arrow v equals s over t
Thus, acceleration can be written as
 
rightwards double arrow a equals v over t equals fraction numerator begin display style bevelled s over t end style over denominator t end fraction equals s over t squared
Thus, unit of acceleration is m/s2 .
Hence, time is considered twice while stating acceleration. 
Answered by Shiwani Sawant | 10 Sep, 2018, 09:57: AM

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