(a) In a frame of reference S_(1) though the net force is zero, the net acceleration is not zero.(b) In a frame of reference S_(2), through the net force is not zero, the net acceleration is zero.(c ) In a frame of reference S_(3), the net acceleration is zero whenever the net force is zero.

(a) In a frame of reference S_(1) though the net force is zero, the ne

1.	(a) In a frame of reference S_(1) though the net force is zero, the net acceleration is not zero.(b) In a frame of reference S_(2), through the net force is not zero, the net acceleration is zero.(c ) In a frame of reference S_(3), the net acceleration is zero whenever the net force is zero.
Answer» `S_(1)` and `S_(3)` are INERTIAL and `S_(3)` is non - incrtial `S_(1)` and `S_(2)` are non - inertial and `S_(3)` is inertial `S_(1), S_(2), S_(3)` are non - inertial `S_(1), S_(2), S_(3)` are inertial Answer :B