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

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Solution

Unaccelerated frame is called inertial frame and accelerated frame is called non-inertial frame. As the earth performs circular motion about its axis, it must have acceleration so it is non-inertial frame of reference.

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Similar questions

Q. A reference frame attached to the earth
a) is an inertial frame by definition
b) can not be an inertial frame because the earth is revolving around the sun
c) is an inertial frame because Newton's laws are applicable in this frame
d) cannot be an inertial frame because the earth is rotating about its axis

Q. What are inertial and non-inertial frames of reference?

Q. Assertion :A concept of pseudo forces is valid both for inertial as well as non-inertial frame of reference. Reason: A frame accelerated with respect to an inertial frame is a non-inertial frame.

Q. Assertion :Two frames

S_{1}

and

S_{2}

are non-inertial. Then frame

S_{1}

when observed from

S_{2}

is inertial. Reason: A frame in motion is not necessarily a non-inertial frame.

Centripetal force is present in both inertial and non inertial frame of reference then how centrifugal force is only present in non inertial frame of reference, it simply means that it is absent in inertial frame of reference , is it true?

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