Question

A particle moves from A to B along a semicircle of radius 1.0m in 1s. Magnitude of the average velocity would be

Answer 1

Displacement = Shortest Distance between initial and final position.

When it travels a semicircular path then it’s displacement is equal to diameter of circle i.e 2r
Therefore,

Displacement = 2 × 1 m = 2 m

Average velocity = Displacement / Time
= 2 m / 1 s
= 2 m/s