Question

A particle is observed to be at rest as seen from a frame of reference. We can conclude that-

• A. the frame is inertial
• B. Resultant force on the particle is zero
• C. Resultant force on the particle is zero, if the frame is inertial
• D. There is a non-zero resultant force, if the frame is non-inertial

Answer 1

Answer: (C), (D)

The correct options are
C Resultant force on the particle is zero, if the frame is inertial
D There is a non-zero resultant force, if the frame is non-inertial