Answer :
Final answer:
Threshold braking maintains braking efficiency by nearly, but not actually, locking the car's wheels. This technique maintains higher tire friction and control compared to a full wheel lock-up, and involves the conversion of kinetic energy to heat energy. Incorrect implementation can lead to overheated brakes, reducing braking effectiveness.
Explanation:
The statement 'Threshold braking increases braking efficiency by locking the car's wheels in an emergency braking situation' is false. Threshold braking, also known as limit braking, is a technique that aims to maximize braking efficiency by applying the brake pedal hard enough to get close to the point of wheel lock-up, but not actually locking up the wheels. If the wheels lock, tire friction is reduced which can decrease braking efficiency and control over the vehicle. It's a process of converting kinetic energy into heat energy in the brake discs and pads – similar to the energy conversions discussed with the cyclist coasting down the hill. Too much conversion at once (for example, wheel locking) may lead to overheated brakes, which can also lessen braking efficacy.
Learn more about Threshold Braking here:
https://brainly.com/question/19755465
#SPJ11
