A car travelling at a uniform speed of 120km h-1 passes two stations in 4 minutes. Calculate the distance between the two stations.
Answer Details
To find the distance between two stations, we need to know the formula:
distance = speed x time
We are given the speed of the car as 120 km/h, but we need to convert this to m/s for the formula to work.
120 km/h = 120000 m/3600 s = 33.33 m/s
We are also given the time as 4 minutes, which we need to convert to seconds:
4 minutes = 4 x 60 seconds = 240 seconds
Now we can substitute into the formula:
distance = speed x time = 33.33 m/s x 240 s = 8000 m
Therefore, the distance between the two stations is 8000 meters, or 8 kilometers.
Answer: 8km