Mathematics · Speed, Time and Distance
A train service has a uniform acceleration of 4 km/h/s for 30 seconds, followed by free running at a maximum speed of 120 km/h for 10 minutes, and then uniform braking at 4 km/h/s to a full stop. Given that the acceleration time is 30 seconds and the braking (retardation) time is also 30 seconds, calculate the total distance between the two stations.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 128 km
- 227 km
- 321 km✓
- 425 km
Correct answer
21 km
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