Statement I: A concept of pseudo force is valid both for inertial as well as non-inertial frame of reference.
Statement II: A frame accelerated with respect to an inertial frame is a non-inertial frame.

Frames moving uniformly with respect to an inertial frame are

Define inertial frame and non-inertial frame. Is earth an inertial frame of reference?

Is a train moving on a circular track, an inertial frame of reference ?

A frame will be inertial, if it moves with respect to another inertial frame with a constant :-

(A) : A reference frame attached to earth is a non inertial frame of reference. (R) : The reference frame which has an acceleration is called a non inertial frame of reference.

It is sometimes heard that inertial frame of reference is only an ideal concept and no such inertial frame actually exists. Comment.

Statement I: A particle is found to be a rest when seen from a frame S_(1) and moving with a constant velocity when seen from another frame S_(2) . We can say both the frames are inertial. Statement II: All frames moving uniformly with respect to an inertial frame are themselves inertial.

Assertion: The driver in a vechile moving with a constant speed on a straight road is in a non-inertial frame of reference. Reason: A reference frame in which Newton's law of motion are applicable is non-inertial.

Assertion: The driver in a vechicle moving with a constant speed on a straight road is in a non-inertial frame of referance. Reason: A reference frame in which Newton's laws of motion are applicable is non-inertial.

Assertion :- Newton's first law defines inertial frame of reference. Reason :- Newton's laws can be applied only in inertial frames of reference.