braking distance Flashcards
1
Q
what is the braking distance affected by?
A
speed - for a given braking force , the faster a vehicle travels , the longer it takes to stop
2
Q
how can the weather or road surface affect braking distance?
A
If there is is less grip between a vehicle’s tyres and the road , it can cause the vehicle to skid.
3
Q
How do icy conditions increase the braking distance?
A
Icy conditions increase the chance of skidding. This increases the braking distance, which increases the stopping distance.
4
Q
when is work done?
A
The brake pads cause friction , which causes work to be done so energy is transferred.
5
Q
Where is energy transferred?
A
Energy is transferred from the kinetic energy store of the vehicle to the thermal energy stores of the brakes
