An object of mass 0.40 kg attached to the end of a string is whirled
PHYSICS
WAEC 1997
An object of mass 0.40 kg attached to the end of a string is whirled around in a horizontal circle of radius 2.0m with a constant speed of 8\(ms^{-1}\). Calculate the angular velocity of the object
- A. 0.8rad\(s^{-1}\)
- B. 2 rad\(s^{-1}\)
- C. 4 rad\(s^{-1}\)
- D. 8 rad\(s^{-1}\)
Correct Answer: C. 4 rad\(s^{-1}\)
Explanation
V=rw, 8=2w, w=8/2= 4rad/s
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