3.6 +3.7 Stopping distances & freefall Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

what is stopping distance?

A

thinking distance + breaking distance
* thinking= distance car travels while driver is reacting (human part)
* breaking = distance car travels while the driver applies breaks (car part)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

how are thinking distance and breaking distance calculated?

A
  • thinking distance= speed × reaction time
  • breaking distnace : suvat equations

assuming constant acceleration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what factors affect thinking diatnce and breaking distance?

A

thinking: (person)
* tiredness/ energy levels
* alcohol
* drugs
* distraction

Breaking: (car)
* weather
* worn tyres
* faulty brakes
* badly mainited roads

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is free fall?

A

the fall of a body through a medium without a drag producing device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the acceleration of all bodies during freefall?

A

g

independant of mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly