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