Question

Newton's first law is applicable
a. in all reference frame
b. only on reference frame
c. only on non-inertial reference frame
d. none of these

Answer 1

According to Newton's first law, there must be a cause for any change in velocity (a change in either magnitude or direction) to occur. ... If an object's velocity relative to a given frame is constant, then the frame is inertial. This means that for an inertial reference frame, Newton's first law is valid.

Answer:

a option is correct

Answer 2

$\huge \cal \colorbox{lime}{☆Answer☆}$

Newton's first law is applicable

a. in all reference frame (✔)

b. only on reference frame

c. only on non-inertial reference frame

d. none of these

$\sf \fbox \pink{Hope it helps.}$