A train travels from one station to another at a
speed of 40 km/h and returns to the first station
at a speed of 60 km / h. Calculate the average
speed and average velocity of the train.
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1
Answer:
Explanation:
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
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