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The position of a moving point in the XY...

The position of a moving point in the XY-plane at time t is given by `((ucos alpha)t,(u sinalpha)t-1/2"gt"^2)` where u,a, g are constants. The locus of the moving point is

A

A circle

B

A parabola

C

An ellipse

D

None of these

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The correct Answer is:
B
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