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Difficulty: EasyFactors Affecting Braking Distance

How will driving down a steep hill affect your vehicle's braking distance?

  1. A
    It will only increase the thinking distance
  2. It will increase the braking distanceAnswer
  3. C
    It will decrease the braking distance
  4. D
    It will have no effect on the braking distance

Answer

It will increase the braking distance
When driving down a steep hill, gravity accelerates the vehicle and increases its forward momentum. The brakes must dissipate significantly more energy to overcome this gravitational pull, directly increasing the vehicle's braking distance.

Step-by-Step Solution

1
Identify the physical forces acting on a vehicle travelling downhill.
Gravity pulls the vehicle downward along the slope, adding to the vehicle's forward momentum.
Evaluating forces acting on the vehicle is required to determine how stopping capability changes.
2
Assess how downhill momentum influences the braking mechanism.
The brakes must work harder to overcome gravitational acceleration, lengthening the distance travelled while braking.
Braking distance is the physical distance covered between applying the brakes and coming to a complete standstill.

Key Concept

Physical factors affecting vehicle braking distance on road gradients
Estimated Time:35s
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Topics

Factors Affecting Braking Distance

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