a car travels P to Q at a uniform speed of 20m/s and immediately turns back and travels towards Q with a uniform speed of 30m/s. What is the average speed for the whole journey?
Answers
Answered by
0
can u tell if the time is given of not
kristigupta:
the time is not given
Answered by
3
When it was at Q it turns back and travels to “P”
Average speed = 2v1v2 / (v1 + v2) = 2*20*30 / (20 + 30) = 1200 / 50 = 24m/s
Average speed = 2v1v2 / (v1 + v2) = 2*20*30 / (20 + 30) = 1200 / 50 = 24m/s
Similar questions
Social Sciences,
8 months ago
History,
1 year ago