. A train travelling due north on a straight railway
track covers a distance of 5 km in 10 minutes.
What is the speed and the velocity of the train
expressed in SI units?
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Answer:
3km/hr
Explanation:
In 10 min the object covers 5000m
then, in 1 min it covers 'x' m
x= 5000/10 =500m
If the object covers 500m in 1 min then in 1 hour it covers= 500×60 = 3000m =3km
In SI units,
speed = distance/time
= 3km/hr
Since the object is moving in straight line, speed=velocity= 3km/hr
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