A vehicle (A) of weight 20 kN skids through a stretch of 40 m before colliding with a parked vehicle (B) of weight 10 kN. After collision both the vehicles move through a distance of 20 m during which speed reduces to 20 kmph. Assume inelastic collision and coefficient of friction as 0.4. Determine the initial speed of moving vehicle.

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Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.