The x and y co-ordinates of a partilce at any time t are given by: `x=7t+4t^(2)` and `y=5t` The acceleration of the particle at 5s is:A. zeroB. `8m//s^(2)`C. `20m//s^(2)`D. `40m//s^(2)`

The x and y co-ordinates of a partilce at any time t are given by: `x=

1.	The x and y co-ordinates of a partilce at any time t are given by: `x=7t+4t^(2)` and `y=5t` The acceleration of the particle at 5s is:A. zeroB. `8m//s^(2)`C. `20m//s^(2)`D. `40m//s^(2)`
Answer» Correct Answer - b `(d^(2)x)/(dt^(2))=8, (d^(2)y)/(dt^(@))=0` Hence `a=8m//s^(2)`

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The x and y co-ordinates of a partilce at any time t are given by: `x=7t+4t^(2)` and `y=5t` The acceleration of the particle at 5s is:A. zeroB. `8m//s^(2)`C. `20m//s^(2)`D. `40m//s^(2)`

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