Question 410 of 276 · Alberta Class 4 Knowledge Test
If a vehicle's weight is doubled, about how long will it take to stop?
Exactly one answer is correct.
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Correct answer to question 410
- C: About twice as long
Explanation
When the weight is doubled, the force needed to stop the vehicle is doubled and it will take about twice as long to stop. A heavy vehicle needs more time and distance to stop even though it has better traction.
More questions: Stopping Distance, Mirrors and Fatigue
- 411How much braking force is needed to stop a vehicle when its speed is doubled?
- 412If both the speed and the weight of a vehicle are doubled, how much more force is required to stop it?
- 413When does a vehicle have the most traction during braking?
- 414What is the average person's perception time?
- 415About how long does it take an air brake system to respond after the driver presses the brake pedal?
- 416Total stopping distance is the sum of which distances?