Car moves with a speed of 30 km/h for half an hour, 25 km/h for one hour and 40 km/h for two calculate the average speed of the car.
Answers
Answered by
3
Answer:
34.29km/h
Explanation:
s=36km/h
t=1/2h
d=30*1/2=18km
s=25km/h
t=1h
d=25*1=25km
s=40km/h
t=2h
d=40*2=80km
total distance=15+25+80
=120km
total time =3.5h
average speed=120/3.5
=34.29km/h
(approx)
Answered by
1
Answer:
As we know that
average speed = total distance covered / total time taken
here, total speed is 30+25km/hr = 55 * 5/18 m/s
total time = 90 mins
so,average time = 15.27 / 90
=0.696
Explanation:
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