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An object is projected with a velocity of `20ms^(-1)` making an angle of 45° with horizontal. The equation for the trajectory is h=`Ax-Bx^2` where 'h' is height, x is horizontal distance, A and B are constants. The ratio A and B is (g=10`ms^(-2)`)

A

`1:5`

B

`5:1`

C

`1:40`

D

`40:1`

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The correct Answer is:
D
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