A car travels a distance $S$ on a straight road in two hours and then returns to the starting point in the next three hours. Its average velocity is
A car travels a distance $S$ on a straight road in two hours and then returns to the starting point in the next three hours. Its average velocity is
- A
$S/5$
- B
$2S/5$
- C
$S/2 + S/3$
- D
None of the above
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