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  • A car travelled along a circle having a radius r = 10 m. It complete the circle in 10 second then i

A car travelled along a circle having a radius r = 10 m. It complete the circle in 10 second then its average speed is

Option: 1

\pi \; m/s\;


Option: 2

\; 2\pi \; m/s\;


Option: 3

\; \frac{\pi }{2} \; m/s\;


Option: 4

\; \frac{3\pi }{2} \; m/s


Answers (1)

best_answer

As we learned

Average Speed -

Amount of total distance covered in total time.

Formula

Average\, speed =\frac{total \, distance\, covered}{total \, time\, taken}

V_{av}= \frac{s}{t}

 

 Total distance =2\pi r=2\pi \times 10\, m=20\, \pi \, m

 Avg. Speed=\frac{Total distance}{time taken}=\frac{20\pi }{10}\; m/s=2\pi\; m/s

 

Posted by

avinash.dongre

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