A train is travelling at a speed of 90 km/h. It is required to stop at the next station, which is 0.3 km away. What retardation must its brakes provide and how much time will the train take to reach the station and stop?
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A train is travelling at a speed of 90 km/h. It is required to stop at the next station, which is 0.3 km away. What retardation must its brakes provide and how much time will the train take to reach the station and stop?
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Answer:
Explanation:
speed = 90 km/h
distance = 0.3 km
distance = speed *time
time = distance / speed
= 90 /0.3
900/3
time = 300 km
a = displacement / time
a= 0.3 km / 300
a = 3/3000
a= 1/1000
r = 0.001 km ^-1
train reach at 300 m
train stop at 300 m
Verified answer
Answer:
300meters
Answer:speed = 90 km/h
distance = 0.3 km
distance = speed *time
time = distance / speed
= 90 /0.3
900/3
time = 300 km
a = displacement / time
a= 0.3 km / 300
a = 3/3000
a= 1/1000
r = 0.001 km ^-1
train reach at 300 m
300 m