An object travels 10 km at a speed of 100 m/s and another 10 km at 50 m/s The average speed over the whole
distance is -
[UP PMT 2004
(1) 75 m/s
(2) 55 m/s
(3) 66.7 m/s
(4) 33 3 m/s
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Explanation:
I hope this will help you my friend
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Explanation:
avg speed=total distance/total time
t1= 10/100
=10
t2=10/50
= 1/5
total time = t1+t2
10+1/5
1.2
20/1.2
16.66
RockAdi:
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