# Inertial Frames of Reference: Examining Forces & Acceleration

• jay ambekar

#### jay ambekar

so here r ma doubts
=> it is sometimes heard tat inertial frame of referance is only an ideal concept and no such inertial frame exists.comment.

=>the accelaration of a particle is zero as measured from an inertial frame of referance . can we conclude tat no force acts on it?

=> a particle stays at rest as seen in a frame. we can conclude tat
1) the frame is inertal
2) resultant force on the particle is zero
3)the frame may be inertial but the resultant force on the particle is zero
4)the frame may be noninertial but there is a nonzero resultant force.
(two of the above options are correct. which r those n why?)

thnx in advance

This sounds like your Homework. I am not going to do your homework for you.

im not asking u to solve anything...these r conceptual doubts

There are no 'doubts' in your question. What do you think the answers are?

amm...i hav no idea abt the first two...i think the last one is (3) and (4)