The co-ordinates of a particle restricted to move in a plane is given by X=6cosπt y=1−4cos2πt The magnitude of acceleration of particle at t=1.5s is (where x and y are in meter and t is in seconds)
A
Zero
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B
6π2m/s2
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C
16π2m/s2
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D
8π2m/s2
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