A particle goes from pointA to pointB, moving in a semicircle of radius 1m in 1second find the magnitude of its average velocity

Answer 1

d = 2pi*r/2 = 6.28*1/2 = 3.14 m.

d = V*t = 3.14,
V*1 = 3.14,
V = 3.14 m/s.