MCQ
A particle is found to be at rest when seen from a frame $S_1$ and moving with a constant velocity when seen from another frame $S_2.$ Mark out the possible options.
- ✓Both the frames are inertal.
- B$S_1$ is inertial and $S_2$ is noninertial.
- C$S_1$ is noninertial and $S_2$ is inerital.
- DNone of these.

