How must the brakes function in a vehicle?

The proper function of brakes in a vehicle is crucial for ensuring safety and control when driving. The correct answer highlights that the foot brake must engage all wheels simultaneously, which promotes even braking power across the vehicle. This synchronized engagement helps to prevent skidding and allows the driver to maintain steering control, especially in emergency situations.

When all wheels receive equal braking force, the vehicle decelerates in a balanced manner, reducing the risk of losing traction. This effective braking mechanism is critical in delivering optimal stopping power and stability, particularly on slippery surfaces or while making sharp turns.

While the hand brake may engage different wheels depending on the vehicle design, the primary function of the foot brake is to engage all wheels at the same time for safe stopping. This ensures that the vehicle can respond appropriately to the driver’s inputs, enhancing overall safety on the road.