Q&A

How does the acceleration of a non-inertial frame of reference cause objects in the frame to move?

How does the acceleration of a non-inertial frame of reference cause objects in the frame to move?

A non-inertial frame of reference does not have a constant velocity. It is accelerating. The frame could be traveling along a curved path at a steady speed. The frame could be traveling along a curved path and also speeding up or slowing down.

Can an accelerating frame be inertial?

No. By definition an accelerating frame of reference cannot be an inertial frame of reference. The Earth is only approximately an inertial frame of reference over sufficiently small distances and times.

What are inertial frames how it has been established that Earth is not an inertial frame?

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An inertial frame is any system that is not accelerating. The Earth is accelerating towards the Sun and rotating around its own axis. Therefore, it is not an inertial frame.

What are the inertial and non inertial frames of reference?

The phrase “inertial frame of reference” refers to a frame of reference that is neither moving nor moving at a constant pace. A non-inertial frame of reference is one that is accelerating or traveling in a cyclic route at a constant pace.

What is the difference between inertial and non inertial reference system?

As long as the frame of reference is not moving or moving with a constant velocity it is termed as an inertial frame of reference. If the frame is accelerating or moving in a circular path with constant speed, it is termed as a non-inertial frame of reference.

What are inertial and non inertial frames of references give an example of each?

For example, a car at standstill or a bus moving with constant speed are considered to be inertial frames of reference. A non-inertial frame of reference is one which is in the state of acceleration. For example, if a car is moving with a certain acceleration it is said to be in a non-inertial frame of reference.

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Which one of the following is an inertial frame of reference?

All frames of reference moving with a constant velocity are inertial frames. Thus options a), b), and c) would all represent inertial frames.

Which of the following reference frames is not an inertial reference frame?

A rotating frame is a non-inertial frame of reference.

Is Earth an inertial or non inertial frame in Figure 1 Why?

In general earth is a non-inertial frame because earth itself is rotating around its axis and revolving around sun. And in both these motion there is a centripetal acceleration present. But as we deal with speed>>3×10^8 and earth speed is 3×10^4 .

Is Earth an inertial or non inertial frame in Figure 1?

The surface of the Earth is not, rigorously speaking, an inertial frame of reference. Objects at rest relative to Earth’s surface are actually subject to a series of inertial effects, like the ficticious forces (Coriolis, centrifugal etc.) because of Earth’s rotation, precession and other kinds of acceleration.

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Which one of the following observers is in an inertial frame?

A pilot in an aircraft, which is in take off stage. The car is not accelerated. Hence the driver is in an inertial frame.