if newtons 2nd law is valid in inertial frame of reference then since second law is used in third law it should also only work in inertial frame of reference.....then it should not valid for non inertial frame.......????? can any one clear it?

Question

anonymous · Answer

yes u r right third law doesnt work in non inertial frame for eg. u sat in a car and  the driver accelerated it  then u get force of ma in opposite direction(pseudo force) but u cant apply equal and opposite force for pseudo force ...
its a property of pseudo force and pseudo force exist in non inertial frame....

if u r not satisfied u can ask sumone else and pls share with me also :)

anonymous · Answer

I think it is valid in all frames. Imagine somebody is sitting on your lap on a bus. If it accelerate, will you not feel that someone pushing on you? I am sure that someone feels your push.

anonymous · Answer

nope! @soorejjones, it is not valid in non-inertial frame of references. think about it this way you are standing in a bus at  rest , sudenly the bus starts accelerating. you feel a force, so, action is there. but no one in the universe feels equal and opposite frce, reaction is absent. pseudo force has no reaction.