Final answer:
To increase brake pressure on vehicles without antilock systems, one should apply more force to the brake pedal, which uses the hydraulic system based on Pascal's principle to distribute this pressure equally to the wheel cylinders.
Step-by-step explanation:
The student has asked how to increase brake pressure on vehicles without antilock brake systems. The correct answer is to apply more force to the brake pedal. When the driver pushes down on the brake pedal, a force is exerted which is magnified by the lever system and further increased by the hydraulic system. According to Pascal's principle, this pressure is then equally distributed to the wheel cylinders, which create equal force outputs, effectively increasing the brake pressure.
Hydraulic brakes work on the principle that pressure applied at one point is transmitted equally to other points within the fluid, as long as the system is sealed. When the driver exerts a force on the brake pedal, this force is transformed into pressure within the hydraulic fluid, which then acts on larger areas at the wheel cylinders, thus increasing the force applied to the brakes.