Question

A particle is moving in a circle of radius R with constant speed. it coveres an angle theta
in some time interval. Find displacement in this interval of time​

Answer 1

Answer:

displacement = ΔS = √(R2 + R2 – 2R2 cosθ) = √{2R2(1 – Cosθ) = √{2R2 × 2 sin2 (θ/2)} = 2R sin (θ/2)