Question

The Q asks for a def of initial RF, my ans is any RF not accelerating, the answer says any RF attached to particles on which no force act. Why? What's the diff?

Answer 1

@wio

Answer 2

initfial RF?

Answer 3

yes, initial reference frame

Answer 4

reference frame?

Answer 5

ok

Answer 6

same thing

Answer 7

except close to speed of light where change in mass is not a factor

Answer 8

No net acceleration would mean no net force, however gravity isn't considered a force in general relativity.

Answer 9

Yes, I thought so, but my answer is given as choice A, and correct answer says B

Answer 10

force is more accurate

Answer 11

as its considered relativistiv effects aswell

Answer 12

Well, I am in freshman phy so probably GR wound't count

Answer 13

wut is GR

Answer 14

we do have a sec on SR at the end of second semester, but that's it

Answer 15

http://en.wikipedia.org/wiki/Inertial_frame_of_reference#Newton.27s_inertial_frame_of_reference

An inertial frame of reference is one in which the motion of a particle not subject to forces is in a straight line at constant speed.

Answer 16

\[\left| n0t \right|\]

Answer 17

lol

Answer 18

that was a hgood one

Answer 19

Even if they are equivalent, the definition is the definition.

Answer 20

Definition can lead to the outcome "not accelerating" perhaps, but it still wouldn't replace the definition.

Answer 21

got it thx