The x and y displacement of a particle in the x-y plane at any instant are given by `x=alphaT^(@)` and `y=2alphaT` where a is a constant. The velocity of the particle at any instant is given by:A. `4asqrt(T^(2)+4)`B. `2asqrt(T^(2)+1)`C. `4asqrt(T^(2)+1)`D. `(a)/(2)sqrt(T^(2)+4)`

The x and y displacement of a particle in the x-y plane at any instant

1.	The x and y displacement of a particle in the x-y plane at any instant are given by `x=alphaT^(@)` and `y=2alphaT` where a is a constant. The velocity of the particle at any instant is given by:A. `4asqrt(T^(2)+4)`B. `2asqrt(T^(2)+1)`C. `4asqrt(T^(2)+1)`D. `(a)/(2)sqrt(T^(2)+4)`
Answer» Correct Answer - b `v=sqrt(((dx)/(dt))^(2)+((du)/(dt))^(2))`

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The x and y displacement of a particle in the x-y plane at any instant are given by `x=alphaT^(@)` and `y=2alphaT` where a is a constant. The velocity of the particle at any instant is given by:A. `4asqrt(T^(2)+4)`B. `2asqrt(T^(2)+1)`C. `4asqrt(T^(2)+1)`D. `(a)/(2)sqrt(T^(2)+4)`

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