vehicles stopping distance

Question 1

stopping distance

Answer 1

distance taken for car to stop during emergency

longer it takes = higher risk

Question 2

stopping distance formula

Answer 2

thinking distance + braking distance

Question 3

thinking distance

Answer 3

distance travelled during drivers reaction time

time between seeing hazard and stepping on breaks

Question 4

braking distance

Answer 4

distance taken for car to stop after break applied

Question 5

factors affecting thinking distance

Answer 5

speed
reaction time
concentration 
tiredness
distractions 
drug/ alcohol influence

Question 6

factors affecting braking distance

Answer 6

speed
road/ weather conditions 
tires conditions
conditions of breaks 
passenger/ car weight

Question 7

speed limits

Answer 7

limits speed having huge effect on stopping distance

Question 8

measuring reaction time

Answer 8

0.2-0.9s

drop ruler and measure distance before u catch

Question 9

brakes

Answer 9

when brake pushed
brake pads are pressed onto wheels
this causes friction
this causes work to be done

Question 10

work done in brakes

Answer 10

wheels transfer energy from kinetic energy stores to thermal energy store in brakes

causes temperature increase