a truck's moves with a speed of 90 km per hour for 20 minutes and at 60 km per hour for next 20 minutes find the average speed of the truck
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As we know that
Average speed =total distance travelled upon total time taken.
And we can find distance with this formula
Speed=distance upon time
In above picture both the answer in m/sec
And in km/hr. Is correct.
Average speed =total distance travelled upon total time taken.
And we can find distance with this formula
Speed=distance upon time
In above picture both the answer in m/sec
And in km/hr. Is correct.
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