Question

A cyclist moving on a circular track of radius
40 m completes half a revolution in 40 s. Its
average velocity is
(a) zero (b) 4 n ms (c)2 ms? (d) 8 T ms-​

Answer 1

• Given :

=> radius of circular track = 40m

=> time = 40 s

• To Find :

=> Average velocity after half revolution

• We know that :

=> Displacement after half revolution = 2r

=> Average velocity = d/t

• Calculation :

=> Vav = d/t = 2r/t = 2×40/40 = 2 m/s

• Answer :

=> Average velocity = 2 m/s

Answer 2

Answer :

__________

C. 2 ms

___________