Two trains approach each other at 15 m s⁻¹ and 20 m s⁻¹. When 500 m apart, both apply brakes with retardation 1 m s⁻². Their separation after both stop is:
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Two trains approach each other at 15 m s⁻¹ and 20 m s⁻¹. When 500 m apart, both apply brakes with retardation 1 m s⁻². Their separation after both stop is:
Options