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There are many components and types of braking systems, and for a train, it must inlcude locomotives and the cars it is pulling. Modern locomotive braking systems are microprocessor systems that operate pneumatic braking, and typically include dynamic braking systems, and in some cases, regenerative braking systems. For one locomotive alone, the total cost of these systems may exceed $200,000 as installed.
There are many factors involved and therefore no single answer. Some factors are reaction time, vehicle speed, vehicle weight, braking type, braking efficiency and vehicle type.
Normally, a vehicle has ONE braking system that includes the brake pedal, the brake master cylinder, newer cars then have the Anti-Lock Braking System, then there are either disc type or drum type brakes at each wheel, and everything is connected with small metal and rubber hoses that allow the pressurized brake fluid to activate the brake pads and/or brake shoes that cause the friction necessary to slow your vehicle.
If u mean breaking systems, then there are plenty. If you mean braking system, then that depends if u have ABS.
Two! that's the traffic school test answer.
There may be many causes to this issue. Regardless, the braking system is arguably the most important safety feature of a vehicle and should not be taken lightly. If your vehicle is not braking well it is advisable to bring it to a service station immediately.
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If by "mobility" one means the "operation" of the vehicle, there are a ton of sensors on modern vehicles. Many are associated with engine operation and performance. And we integrate more and more sensors into vehicles all the time. The ABS braking system is a sensor driven system that maximizes vehicle braking performance by preventing the wheels from locking up (and, thereby, the tires' traction from "breaking" with the roadway). There are lots of sensors on cars, and it might take a course on vehicle mechanics to get a handle on them all. And those don't count the ones associated with climate control, audio and video systems, etc.
Flexibility when the vehicle body moves independent of the frame.
On dry, level pavement, with decent tires? About 120 feet. Many things affect this calculation. With worn tires the distance can increase to 210 feet. Dirt roads require longer braking distances than pavement. Ice can increase the braking distance by hundreds of feet. Braking down a hill, depending upon the slope, can double the braking distance, whereas braking up hill can halve that distance. If you lock the tires, you typically increase the braking distance. You can reduce the distance by pumping the brakes. Anti-lock brakes allow the tires to slip, which decreases the braking distance. Extra weight in the vehicle increases the braking distance. Refer to the link below for calculating the braking distance at different speeds with different tire wear on dry, level pavement.
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