A train covers 405 km in 4 hours 30 minutes.Find the speed of the train.
Answers
Hey,
Know that speed is the distance covered by a moving object (a train in your case) in a unit time taken. It is a scalar quantity and hence can be represented by magnitude not direction. In other words, speed of an object is the rate of change of distance with time
Speed = distance traveled ÷ time taken
Distance = 504 km
Time = 4.5 hrs
Speed = (504÷4.5) km/hr
= 112 km/hr
But the SI Units of speed is m/s.
Noting that:
1km = 1000m, and
1 hr = 60 m = 3600 s
Therefore,
Speed = 112×3.6 m/s
= 403.2 m/s
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Andy Thompson
Andy Thompson, former Auto Shop Owner, 50 Years (1976-2016)
Answered Feb 7, 2018 · Author has 2.6k answers and 1.1m answer views
I'm really curious, while being nice and respectful to the guy/girl asking this, if I give you a wrong answer to this, would you copy it and hand it to your instructor, a homework question, certain it's correct??
Still curious... Why would ANYONE ask a question like this out of simple curiosity, sitting in his back yard when these exact numbers whacked him in the head, had to go ask us...
Just trying to simplify, the Train is traveling 270 minutes.
Hope i helped... :)
Answer:
Step-by-step explanation:
Distance=speed×time
405=speed×{4×1/2}
405=speed×2
Speed=405/2
Speed=202.5km/hr