Question

an athlete is running in a circular track if he covers half of the the circle in 60 Seconds he is average angular velocity is a)πrads-1 b)πbyrads-1 c)πby90rads-1 d)πby120rads-1​

Answer 1

solution

angular velocity= 2× pi/T

where T= time period= 120 seconds

so angular velocity= 2pi/120

= pi by 60 radian per second

angular velocity= pi by 60 radian per second