The co-ordinates of a moving particle at any time ‘ $t$ ‘ are given by $x=\alpha t^{3}$ and $y=\beta t^{3}$. The speed of the particle at time ‘ $t$ ‘ is given by

Question:

The co-ordinates of a moving particle at any time ‘ $t$ ‘ are given by $x=\alpha t^{3}$ and $y=\beta t^{3}$. The speed of the particle at time ‘ $t$ ‘ is given by

  1. $3 t \sqrt{\alpha^{2}+\beta^{2}}$

  2. $3 t^{2} \sqrt{\alpha^{2}+\beta^{2}}$

  3. $t^{2} \sqrt{\alpha^{2}+\beta^{2}}$

  4. $\sqrt{\alpha^{2}+\beta^{2}}$

JEE Main Previous Year Single Correct Question of JEE Main from Physics Motion in a Plane chapter.

JEE Main Previous Year 2003


Correct Option: 2

Solution:

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