A car completes one round around a circular path whose radius is $r$ in time $t$. Find the speed of the car.

  As shown in the above fig. The car completes one round along the circular path with radius $r$

The distance travelled by the car $=$ Circumference of the circular path

$=2\pi r$

Therefore, speed of the car$=\frac{distance}{time}$

$=\frac{2\pi r}{t}$

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Updated on: 10-Oct-2022

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