Physics, asked by triptiidube, 9 months ago

A train takes 3.5 hrs to reach station B from station A, and then 4.5 hrs to return from station B to station A. The distance between the 2 stations is 300km. Find the average speed and average velocity of the train?​

Answers

Answered by Anonymous
37

Given that, the distance between two stations is 300 km.

Also given that, A train takes 3.5 hrs to reach station B from station A, and then 4.5 hrs to return from station B to station A.

As per given condition,

Distance from A to B station (A → B) = 300 km and Distance from B to A station (B → A) = 300 km

Therefore, the total distance = (A → B + B ← A) 300 + 300 = 600 km

Now,

a) Average Speed = (Total Distance)/(Total time)

Total time = (3.5 + 4.5)hrs = 8.0 hours or 8 hours

Substitute the known values

⇒ 600/8

⇒ 75 km/hr

b) Average Velocity = (Total displacement)/(Total time)

Now, as trains start from station A then reach station B, later return to station A again.

As it's starting and ending points or destinations are same. So, displacement is zero.

⇒ 0/8

⇒ 0 km/hr

Answered by Saby123
48

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QUESTION :

A train takes 3.5 hrs to reach station B from station A, and then 4.5 hrs to return from station B to station A.

The distance between the 2 stations is 300km.

Find the average speed and average velocity of the train?

SOLUTION :

From the above Question, we can get the following information...

A train takes 3.5 hrs to reach station B from station A, and then 4.5 hrs to return from station B to station A.

A train takes 3.5 hrs to reach station B from station A, and then 4.5 hrs to return from station B to station A. The distance between the 2 stations is 300km.

The distance between the two stations is 300 km.

So, distance = 300 km. × 2 = 600 km

Now, Total time taken to cover this distance :

Total time by: 3.5 hrs + 4.5 hrs = 8 hrs =

Now we know that :

Average Speed = Total distance covered / Total time taken.

So ,

Average Speed = 600 km / 8 hrs = 75 kmph.

Now, the Displacement of the train is 0 km as the train returns to the same point.

Average Velocity is equal to : Total Displacement / Time taken

=> 0 kmph.

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