1.

The displacement of a particle moving along x-axis with respect to time t is x = at + bt^(2) - ct^(3)The dimensions of care

Answer»

`[T^(-3)]`
`[LT^(-2)]`
`[LT^(-3)]`
`[LT^(3)]`

Solution :`x= at+ bt^(2)-CT^(3)`
Each term on RHS MUST have dimensions of x.
`:. [ct^(3)]= [x]` or `[c]= ([x])/([t^(3)])= ([L])/([T^(3)])= [LT^(-3)]`


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