Question

a train travels from A to B is 10m/s and B toA is 20m/s find it's average speed​

Answer 1

Answer:

Here is the answer---

Let the Distance between the Station A and Station B is x m.

In First Case(From A to B).

∵ Time = Distance/Speed

 ⇒Time(T₁) = x/10 seconds.

In Second Case(From B to A).

Time(T₂) = x/20 seconds.

Total Time(T) = T₁ + T₂

= x/10  + x/20

= (2x + x)/20 seconds.

Total Distance = x + x

 = 2x m.

Using the Formula,

Average Speed = Total Distance/Total Time

= 2x/(3x/20)

= 40/3 m/s.

∴ Average Speed of the Train during the Journey is 40/3 m/s.

Hope it helps.

Explanation:

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