The velocity of a particle is given as v=a+bt+ct2 .the velocity is measured in ms−1 , then units of a and c are
A
ms−1 and ms−3
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B
ms−2 and ms
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C
m2s and ms2
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D
ms and ms−1
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Solution
The correct option is Ams−1 and ms−3 The magnitudes of physical quantities can be added together or subtracted from one another only if they have the same dimensions.