SSC
PHYSICS
Question
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It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 miles/hr. How many miles lie between the two cities?

34 miles


420 miles


120 miles


360 miles

Explanation:
Detailed explanation1: As given above, the velocity of the train is 120miles per hour. It means in 1hour the train travels 120miles. So in 3.5 hours the train travels= 120×3.5=420 miles. So the distance between two cities is= 420miles.
Detailed explanation2: Answer: Speed = Distance divided by Time. So, speed = 75 miles divided by 2.5 hours = 75 / 2.5 = 30 miles per hour. Velocity is speed and direction, so the velocity is 30 mph Northbound.
Detailed explanation3: And that is 50 kmph. And that’s the answer. Hope it helps.
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