Question

15. A scooterist is racing at a speed of 72 km/h.
If the radius of the wheel is 20 cm, find
the angular speed of the wheels.
(Ans. 100 rad/s)
​

Answer 1

Explanation:

V=72kmph= 5*72/18=20m/s

angular velocity=v/r

=20*100cm/s/20=100 rad/s