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14) The co-ordinates of a moving particle at any time 't'are given by x - at and y Bt'. The speed of thecle at time t is given by JEE mains 2003]\begin{array}{l}{\text { (1) } 3 t \sqrt{\alpha^{2}+\beta^{2}}} \\ {\text { (3) } t^{2} \sqrt{\alpha^{2}+\beta^{2}}}\end{array} |
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