The heavier the vehicle, the more work the brakes must do to stop it and the more heat they absorb. But the brakes, tires, springs and shock absorbers on heavy vehicles are designed to work best when the vehicle is fully loaded. Empty trucks require greater stopping distances, because an empty vehicle has less traction. It can bounce and lock up its wheels, giving much poorer braking. (This is not usually the case with buses.
True. This is a
psychological belief that people control their lives or factors in the
environment or society control it. Those believe they control their lives have
a strong internal locus while those who believe life is determined by the
factors around them have strong external locus.
