Question

define average speed a train covers first half of its journey with a uniform velocity of 40 km per hour and the remaining distance with a uniform speed of 60 km per hour find its average speed for the whole journey​

Answer 1

average speed was-

40km/h +60km/h =100km/h

,thus

100km/h divided by 2

so answer is 50 km/h is average speed

thanks

Answer 2

Distance covered with speed 40 km/h = 60 km Distance covered with speed 20 km/h = 20 km ... What is the average velocity of the entire journey? ... A car covers the first quarter of its journey at a speed of 30 km/hr, second quarter at 40 km/hr, ...