A car moves at 80 km/h in the first half of total time of motion and at 40 km/h in the later half. It's average speed is
a) 60 km/h
b) 30 km/h
c) 120 km/h
d) none of these.
(Proper explanation needed.)
Answers
Answered by
2
Answer:
a 60 km per hour
Explanation:
formula for finding average speed = a + b/2
= 80 +40 /2
=120/2
=60
Answered by
2
Answer:
The average velocity of the car is the rate of the total distance traveled with respect to the total time. A car travels at a speed of 80 km/h during the first half of its running time and at 40 km/h during the other half, then the average speed of the car 60km/hr.
Therefore a) 60 km/h
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