an object completes 420 revolution around the circular path with speed 22m what is radius of circular path
Answers
Answer:
In one complete cycle, it comes back to its initial position, so the displacement of the object is zero.
Distance travelled = circumference of the circle = 2πr
=2×7 22 ×3.5
=22m
Explanation:
Given : an object completes 420 revolution in a minute around the circular path with speed 22m/s
To Find : radius of circular path
Solution:
Speed = 22 m/s
Time = 1 min = 60 secs
Distance = Speed * Time
=> Distance = 22 * 60 = 1320 m
Number of revolutions = 420
Hence Distance covered in 1 revolution = 1320/420
= 132/42
= 66/21
= 22/7 m
Circumference = distance covered in one revolution
Circumference = 22/7 m
Circumference = 2π (radius)
=> 2π (radius) = 22/7
π = 22/7
=> 2(22/7) (radius) = 22/7
=> radius = 1/2
Hence radius of circular path is 1/2 m
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