PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
Three observers watch the same event.
S₁: inside a car moving at constant velocity in a straight line.
S₂: standing on the roadside.
S₃: inside a car going round a circular track at constant speed.
Which observers are in inertial frames of reference?
(a) S1 and S2
(b) S1,S2 and S3
(c) Only S2
(d) Only S1