Safe driving 2 pts
If you double your speed, for example from 50 km/h to 100 km/h, your braking distance on a dry carriageway increases:
Correct answer
- To roughly four times the original braking distance.
Other options
- To roughly three times the original braking distance.
- To roughly twice the original braking distance.
Explanation
What the law says: Kinetic energy rises with the square of speed.
Part of the subscription
The full explanation is part of the subscription
Tests stay free. A subscription unlocks the content that teaches you why an answer is right.
Already subscribed? Sign inWhere to learn this
The lesson that covers this question — in depth in the textbook, in two minutes in the daily lesson.
Discussion of this question
Mnemonics, traps and gripes from other learners. Taking a swing at an illogical paragraph is fine — at people it is not.
Open the discussion in the app →Similar questions from this topic
- Can overloading a truck with cargo be dangerous?
- When avoiding an obstacle on a motorcycle, the driver's gaze is directed:
- You are driving behind a bus that is stopping at a stop at the right edge of the roadway. How do you…
- The driver of the vehicle ahead of you apparently forgot to turn off the left turn signal. How do you…
- Can a driver read a map while driving?
- It is a very hot day. What can you expect on the road as a motorcycle rider?