On which wheels does the service brake act?
Active and passive safety
Explanation
The **service brake**, which is activated by pressing the **brake pedal**, acts on **all the wheels of the vehicle**. This is essential to ensure effective and safe braking, as it distributes the braking force evenly, allowing the vehicle to reduce its speed or come to a complete stop in a controlled manner.
- When the brake pedal is pressed, a force is transmitted through a special fluid called **brake fluid**. This fluid carries the force to the **pads or shoes**, which are the elements that actually brake the wheels by rubbing against other components.
- It is important to note that the **handbrake** is different, as it only acts on the **rear wheels** and is mainly used to keep the vehicle stationary when parked.
Therefore, the service brake is the one that ensures all wheels participate in the braking, thus ensuring a balanced and safe stop of the vehicle.
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