If ` x= at + bt^(2)` , where `x` is the distance rtravelled by the bod – InterviewSolution

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1.	If ` x= at + bt^(2)` , where `x` is the distance rtravelled by the body in kilometer while `t` is the time in seconds , then find the units of `b`.A. `km//s`B. `km-s`C. `km//s^(2)`D. `km-s^(2)`
Answer» Correct Answer - C As `x = at +bt^(2)` According to the concept of dimensional analysis and principle of homogeneity `:.` unit of `x =` unit of `bt^(2)` `:.` unit of `b = ("unti of" x)/("unit of" t^(2)) = km//s^(2)`

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