An object moves in a circular path of radius 0.5m…

An object moves in a circular path of radius 0.5m with a speed of 1m/?. What is its angular velocity?

A. 8???/?

B. 4???/?

C. 1???/s

D. 2???/s

QUICK ANSWER…

D

EXPLANATION…

V = Rw

Where V = linear speed = 1m/s

R = radius = 0.5m,

w = angular velocity = ?

so, w = V/R = 1/0.5 = 2rad/s

Now for the right answer to the above question:

1. Option A is incorrect.
2. Option B is incorrect.
3. C is incorrect.
4. D is the correct answer.

HELPFUL TIPS…

You may please note these/this:

• Linear speed of circular motion = radius of rotation x angular velocity.

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/ culled from 2018 JAMB-UTME physics question 38 /