PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane
Problem
An object moves along a straight track. Two inertial observers, O1 and O2, move at constant velocity relative to each other while measuring the object’s motion. Which of the following physical quantities must have the same magnitude for the object in both observers’ measurements?
(a) The object’s velocity
(b) The object’s acceleration
(c) The object’s kinetic energy
(d) The object’s displacement from its starting point