which statement is true about brakes? the heavier a vehicle or the faster it is moving, the more heat the…
which statement is true about brakes? the heavier a vehicle or the faster it is moving, the more heat the brakes have to absorb to stop it brakes have more stopping power when they get very hot brake drums cool very quickly all of the above
Answer
Brief Explanations:
The kinetic energy of a vehicle is proportional to its mass and the square of its velocity ($KE=\frac{1}{2}mv^{2}$). Brakes convert this kinetic energy into heat to stop the vehicle. So, a heavier or faster - moving vehicle has more kinetic energy, and thus brakes need to absorb more heat to stop it. Brakes lose stopping power when they over - heat (a phenomenon called brake fade), and brake drums do not cool very quickly.
Answer:
The heavier a vehicle or the faster it is moving, the more heat the brakes have to absorb to stop it