A moving car possesses average velocities of 5 ms−1, 10 ms−1, and 15 ms−1 in the first, second, and third seconds, respectively. What is the total distance covered by the car in these 3s?
A
15m
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B
30m
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C
55m
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D
None ofthese
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Solution
The correct option is B30m Average speed in 3secs=5+10+153=10m/s