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The equations of motion of a particle P(...

The equations of motion of a particle `P(x,y)` on a plane are given by `x=4+r. cos t, y=6+r. sin t`, where t is time and r is constant . Its velocity at time t is

A

`-cot (t)`

B

`- tan (t)`

C

r

D

`r. tan (t)`

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The correct Answer is:
A
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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