Question

Which of the following are not in uniform motion?(a): a bullet travelling with a constant speed in a straight line (b): a swinging Pendlum (c): the rotation of the earth (A): only (1) and (2) (b): only (3) and (1) (c): only (2) and (3) (d): (1),(2) and (3)​

Answer 1

Answer:

option A : only 1 and 2 as in 1 and 2 external unbalanced force is also there