Science, asked by ayush8848, 11 months ago

first of her journey by a body in travel by a speed of 40 km per hour in the next after travel with the speed of 20 km per hour calculate average speed of whole journey

Answers

Answered by kspaneserpcd1d9
0
total dist cover es in two hours 60. ave is 30 km per hour
Answered by Lord99X
0
let's assume distance be 60 km
therefore, first hour we travel 40km
in second hour, we travel 20 km
average speed is total distance÷totaltime
therefore, 60 ÷ 2
=30 km per hour
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