Question
An object of mass 0.40kg attached to the end of a string is whirled round in a horizontal circle of radius 2.0m with a constant speed of 8 m/s. Calculate the angular velocity of the object.
Solution
The final answer to the above question is 4 radians per second (rad/s)
Explanation
Data:
Radius, r = 2.0 m
Linear speed, v = 8 m/s
mass, m = 0.40kg
Unknown
Angular velocity, ω = ?
Formula
ω = v / r
Solution
We will now plugin our data into the above formula
ω = v / r = 8 / 2 = 4 rad/s
Therefore, the final answer to the angular velocity of the object is 4 radians per second (rad/s)
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