A train travel with a speed of 60 km/h and then
comes back with a speed 80 km/h.
find a - average speed b -
average velocity
of
Answers
Answered by
1
Answer:
Let distance from A to B = x/60 hr
time taken by train from B to A = x/8okm
Total time taken by train= x/60+x/80 = 7xhr/240
average speed = total distance/total time = = 2x/7x/ 240
400/7 km h-1
Similar questions