Train A moves at 25 m s⁻¹ and sees train B moving in the same direction at 15 m s⁻¹. Train A applies brakes producing a constant deceleration of 1 m s⁻². Find the minimum initial separation, in metre, required to avoid collision.
Physics · Kinematics part-3 Relative motion · Relative motion in one dimension
Train A moves at 25 m s⁻¹ and sees train B moving in the same direction at 15 m s⁻¹. Train A applies brakes producing a constant deceleration of 1 m s⁻². Find the minimum initial separation, in metre, required to avoid collision.