Why are car seat-belts designed to stretch somewhat in a collision ?

Why work is required to be done to stretch a wire?

Why are cars, aeroplanes and rockets streamlined ?

According to collision theory of reactions, Why all molecular collisions do not result in effective collision?

Why does rubber become stiff on stretching?

A car is moving with a velocity V. The car driver sees a truck at rest at a distance s. To avoid collision which is better, to apply brake or to turn sharply ?

The converyor belt is designed to transport packges of verious weights.Each 10 kg package has a coefficient of kinetic friction mu_(k) = 0.15 .If the speed of the conveyor belt is 5 m//s and then it suddenly stops, determine the distance the package will slide before coming to rest (g = 9.8 m//s^(2))

The converyor belt is designed to transport packges of verious weights.Each 10 kg package has a coefficient of kinetic friction mu_(k) = 0.15 .If the speed of the conveyor belt is 5 m//s and then it suddenly stops, determine the distance the package will slide before coming to rest (g = 9.8 m//s^(2))

_______computer are specifically designed computer chips that reside inside other devices such as your car or the electronic thermostat in your home.