When it becomes loose then you have to press harder than you did before to halt the car when braking.
It seems like there might be air in your brake system. You should try bleeding your brakes and filling it with fresh brake fluid.
brake rotors out of round
Push the brake pedal? What, exactly, are you asking??
In a car with manual gearbox, the brake pedal is usually in the middle. In my first car, the accelerator was in the middle, which caused a few 'interesting' moments!In American cars with automatic transmission, the brake is on the left and the accelerator on the right. On a standard transmission (stick-shift), the brake is in the middle, with the clutch on the left and accelerator on the right.
Applying the accelerator pedal or brake pedal can cause a change in velocity of a car. Accelerating will increase velocity, while braking will decrease velocity.
If you step on the brake pedal , yes
Just hitting the brakes will not stop the car if the brakes are faulty. Pressing the brake pedal starts a process by which brake fluid disperses the force of your foot by increasing the surface area of the fluid being pushed. This increase in force is then transferred to "soft" pads that press against the moving wheels of the car. This friction is what stops the car. However, if the brake pads do not make contact with the wheels, the brake lines carrying he brake fluid are severed, the brake fluid is low or empty, or the connection between the brake pedal and the whole system is faulty, then the brakes will fail.
bad or out of adjustment brake switch on the brake pedal arm
Possibly nothing more than the brake pedal return spring catching on something.
To end (stop) a race car, press the brake pedal.
The brake pedal and the accelerator pedal can cause a change in speed.