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What are the Federal Motor Vehicle Safety Standards to regain control of a vehicle in a skid?

A. FMVSS 126
B. FMVSS 301
C. FMVSS 212
D. FMVSS 405

Answer :

Final answer:

The FMVSS relevant to regaining control of a vehicle in a skid is FMVSS 126, covering Electronic Stability Control systems. The force to maintain a constant speed during a skid in an idealized physics scenario would not apply; real-world control involves maneuvering and braking. Constructing motion diagrams aids in understanding vehicle dynamics during skids.So the correct answer is option a) FMVSS 126.

Explanation:

The Federal Motor Vehicle Safety Standards (FMVSS) are regulations that dictate safety requirements for vehicles in the United States. The specific standard relevant to regaining control of a vehicle in a skid is FMVSS 126, which covers Electronic Stability Control (ESC) systems. ESC systems are designed to help drivers maintain control of their vehicles during extreme steering maneuvers. This system senses when a vehicle is beginning to skid and applies brakes to individual wheels to help maintain the intended path of the vehicle.

In the context of the provided information, the force required to keep a car moving at a constant speed despite kinetic friction after the car begins to skid does not specifically relate to any FMVSS. When a car skids, the kinetic friction is what slows it down, and in the idealized physics problem, once the car is skidding, no extra force would be needed to maintain it at a constant speed due to the principle of inertia, as long as external forces are balanced. However, in a real-world scenario, a driver must work to regain control, likely by steering and modulating braking.

Regarding the automobile safety regulations, these are established to ensure vehicles are safe for use on public roads. Constructing motion diagrams, such as for an automobile skidding to a stop over a distance of 35 meters with an acceleration of -6.0 m/s², helps in understanding the vehicle dynamics during such events.

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