The driver of a 1,000 kg car travelling at a speed of 16.7 m/s applies the car's brakes when he sees a red light. the car's brakes provide a frictional force of 8,000 n. determine the stopping distance of the car.

1.04 meters

Explanation:

Thinking process:

Gathering the data

mass  = 1 000 kg

speed, u = 16.7 m/s

Frictional force = 8 000 N

distance, s  = ?

final velocity  = 0 (car stops)

We know that the final velocity is calculated as:

But, a = negative (declaration)

And F = ma

substituting, 0 = (16.7) - 2 (8) (s)

                    -16.7 = -16s

                         s  = 1.04 m

   Stopping distance = 1.04 meters

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force