Question

A train travels from one Station to another of the speed of 40km/hr and returns. to the first Station at a speed of 60km /hr. calculate average Speed average velocity of the train ​

Answer 1

Answer:

Net displacement of the train in coming back to the first station is zero i.e. S=0 .

Average velocity V

avg

=

t

S

=0

Average speed of the train when in moving equal distances is given by ∣V∣

avg

=

v

1

+v

2

2v

1

v

2

⟹ ∣V∣

avg

=

40+60

2×40×60

=48 km/h

Explanation:

Hope it's helpful!!!!

Answer 2

Answer:

Let S be the distance between two stations

Time taken by train from one station to another, hr.

Time taken for returning, hr.

Average speed = = 48 km

Average velocity =

* Shortcut Average speed = 48 km

HOPE it helps