Question

A train travels from one station to
another at the speed of 40 km/h and return
speed of 60 km/h. Calculate
average speed and average velocity of
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