Motion in a Straight Line - Result Question 6
6. A bus travelling the first one third distance at a speed of , the next one third at and the last one-third at . The average speed of the bus is
(a)
(b)
(c)
(d)
[1991]
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Answer:
Correct Answer: 6. (c)
Solution:
(c) Average speed
In case speed is continuously changing with time, then,