Which of the following statements is correct? |
i. Density is a scalar quantity. |
ii. Momentum is a vector quantity. |
iii. An object can never have zero displacement if it has moved through a distance. |
iv. If an athletes completes one round of a circular track of diameter 200 m in 40 seconds, the distance covered by him at the end of 2 min 20 s will be 2200 m. |
A) i and iii
B) ii and iii
C) i, ii and iv
D) only iii
E) None of these
Correct Answer: C
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