`x` and `y` co-ordinates of a particle moving in `x-y` plane at some instant of time are `x=2t` and `y=4t`.Here `x` and `y` are

`x` and `y` co-ordinates of a particle moving in `x-y` plane at some instant of time are `x=2t` and `y=4t`.Here `x` and `y` are in metre and `t` in second. Then
The distance travelled by the particle in a time from `t=0` to `t=2s` is ………`m`
A. `2sqrt(3)`
B. `4sqrt(5)`
C. `sqrt(2)`
D. `3sqrt(40)`

`x` and `y` co-ordinates of a particle moving in `x-y` plane at some instant of time are `x=2t` and `y=4t`.Here `x` and `y` are in metre and `t` in se

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