Question

A train travels at a speed of 45kmith
from A to B and return with the same
speed B to A calculate the averagespeed​

Answer 1

Answer:

The Average Speed is 45 km/h

Explanation:

Suppose the distance from A to B is x km

1. While traveling from A to B, the Speed is 45 km/h.
2. Suppose the Time Taken be T1

Speed = Distance / Time

=> 45 km/h = x / T1

THEREFORE, Time Taken = x / 45 hr

On the Return trip, the Average Speed is 45 km/h, suppose the Time Taken for the Return Trip is T2.

Speed = Distance / Time

=> 45 km/h = x / T2

THEREFORE, Time Taken = x / 45 hr

We'll now Consider the Whole Trip (A to B and from B to A)

Total Distance = x + x = "2x" km

Total Time Taken = x / 45 + x /45 = 2x / 45 hr

Average Speed = Total Distance / Total Time Taken

=> 2x ÷ 2x/45 = 45 km/hr.

We can observe that The Speed and The Average Speed is the same. This is because the Train is traveling in a Straight Line........

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