An ant goes from P to R on ... -Eduinfy.com
MCQ Solution: Kinematics

An ant goes from P to R on a circular path in 20 second Radius OP=10m. What is the average speed and average velocity of it ?

1) (π/6) m/s, 3 m/s 2) (π/3) m/s, √3/2 3) (π/3) m/s,√3 4)  π √6

Length of arc=(2π/3) × (op) 
Speed=Length of arc/ time 

Displacement PR 

From figure angle POM=60° 
thus PM=OPsin60 
PM=10 (√3 /2)
Thus PR=2PM=10( √3)
Velocity=PR/time=√3/2

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