Question

what is newton's inertial frame of reference?

Answer 1

@Callisto help.... this is my doubt too..

Answer 2

An inertial reference frame is a reference frame in which Newton's first law is valid. Newton's first law of motion states that if no forces act on a body, it will keep moving with constant velocity. This law is also called 'law of inertia'. Experiments have shown that the heliocentric reference frame, i.e. the reference frame with centre in the Sun and axes pointing toward the fixed stars (the axes don't rotate relative to the fixed stars) can be considered an inertial frame.
If you consider another reference frame moving at constant speed with respect to an inertial frame, it will be an inertial frame too, because il verifies the law of inertia.

Answer 3

the referential must be in the rest or in velocity constant

Answer 4

The one in which F=ma works and you don't need (general) relativity to pimp it up. Things in the same frame t as long as they aren't accelerating or moving relative to one another, and there is (only) one group of frames in which F=ma*[(1-(v/c)^2)^-1] holds, and that is in the inertial FOR, none of which accelerate relative to one another. The brackets would be an update for Einstein's inertial FOR.

Answer 5

As far as I know. inertial frame of reference is the one in which all the newton's laws hold. As F=ma, or first law of motion. because in the space, objects don't accelerate, so the inertial frame is the non-accelerating frame of reference. And so for the non-inertial frame, the objects must be accelerating.

Answer 6

any one know major differences btween Galilean frame of reference and newton frame of reference?

Answer 7

I've never heard about Galilean or Newton frames of reference. In Newtonian Mechanics we distiguish between inertial and not inertial frames. I've heard about Galileian transformation between frames, though.
If you have an inertial frame I another frame I' will be itself inertial if it's moving with uniform linear motion relative to I.
We say that there's a Galilei transformation between the two (inertial) frames. The Galilei transformation, if we consider the figure, is given by:
\[x=x'+vt, y=y', z=z', t=t'\] where v is the (constant) velocity of I' with respect to I.