2.7 Force And Speed Issues Flashcards
0
Q
When does skidding happen
A
When the brakes on and pickle and apply to harshly
1
Q
When a vehicle is travelling along a straight road at a steady speed what can you say about the engine force and the air resistance
A
The vehicle is not accelerating, so the resultant force is at 0. The engine force and air resistance are balanced
2
Q
What happens when a vehicle skids
A
The wheels mark and slide along the road surface increasing the stopping distance
3
Q
Why are average speed cameras linked in pairs
A
So they can determine the speed at two points and calculate the average speed
