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Position of a particle moving along stra...

Position of a particle moving along straight line is given by `x(t)=(A)/(B)(1-e^(-At))`, where `B` is constant and `Agt0`. Dimension of `(A^(3))/(B)` is similar to `:-`

A

(a)Linear momentum

B

(b)Moment of inertia

C

(c)Relative velocity

D

(d)Acceleration

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The correct Answer is:
D

At is dimensionless so `[At]=1`
`implies[A]=[T^(-1)]` also `[x]=[(A)/(B)]` so `[B]=[L^(-1)T^(-1)]` Therefore `[A^(3)/(B)]=[(T^(-2))/(L^(-1)T^(-1)]]=[LT^(-2)]`
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