anawer this questions with reason i will mark u as brainlst
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4 and 5??
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Q4...answer 4...all of the above
as retardation is defined as -ve acceleration . Since acceleration is a vector quantity so retardation is also a vector quantity
it's S.I unit is m/s^2 and it's dimensional unit is [LT-2]
Q5....answer 3...speed is a scalar quantity as it has magnitude and no direction..
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