A drone revolves around an object in a circular orbit of radius 60m. If it takes 2 minutes to complete one revolution, calculate its speed.
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Answer :
Radius of circular path = 60m
Time taken by drone to complete one revolution = 2min
We have to find speed of drone
★ Speed is defined as the ratio of distance traveled to the time taken.
- speed = distance/time
It is a scalar quantity having only magnitude.
SI unit : m/s
★ Conversion :
- 1min = 60s
∴ 2min = 2 × 60 = 120s
★ Calculation :
➙ speed = distance/time
➙ speed = 2πr/t
[∵ perimeter of circle = 2πr]
➙ speed = 2 × 3.14 × 60/120
➙ speed = 3.14 m/s
Cheers!
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