Stopping Distance For A Vehicle
When breaks are applied to a moving vehicle, the distance it travels before coming to halt is called stopping distance. Its value depends upon the speed at which the vehicle is running and the efficiency of the breaking system.
Let the distance travelled by the vehicle before it stops be ds, then
By using the equation of motion
When a situation demands our immediate action, it takes some time before we really respond. Reaction time is defined as the time a person takes to observe, think and act.
Reaction time depends on
(I) An individual presence of mind.
(II) The complexity of the situation.