Question

Which of the following statements are correct?
i. A particle is known to be at rest if it does not change its position with time.
ii. In any journey, the numerical value of displacement $\le$ distance
iii. Distance covered by an object is the sum of speed of the object and the time taken to travel the distance.

• A. i, ii
• B. ii, iii
• C. i, ii, iii
• D. i, iii

Answer 1

The correct option is A

i, ii

Statement i is correct because when a body is at rest, it does not change its position with time.
Statement ii is also correct as the value of displacement is either equal to or less than distance. Distance is the total path covered whereas the displacement is the shortest path.
Statement iii is incorrect because distance = speed$\times$time.