A train 420 m long passes a pole in 20 seconds. What is the speed of the train?
Answer & explanation
Correct answer: option 3
Distance = 420m
time = 20sec
Speed = \(\frac{distance}{time}\)
Speed = \(\frac{420}{20}\) = 21 m/s
A train 420 m long passes a pole in 20 seconds. What is the speed of the train?
Correct answer: option 3
Distance = 420m
time = 20sec
Speed = \(\frac{distance}{time}\)
Speed = \(\frac{420}{20}\) = 21 m/s