A. particle travels 1st half of total distance at 60 km/h and remaining half at 40km/h. find its average
speed
(1) 45 km/h
(2) 48 km/h
(3) 50 km/h
(4) 54 km/h
Answers
Answered by
0
Answer:
3 one
Explanation:
......,may be it is correct
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