If you double the speed of a car, the amount of kinetic energy in a crash:
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Doubles.
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Triples.
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Stays the same.
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Quadruples.
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Explanation
When drivers double the speed of their car, they increase its impact force, or kinetic energy, by four times. If they triple their speed, the kinetic energy increases nine times. By law, drivers aren't allowed to speed; they must obey the posted speed limit and adjust their speed according to weather, road, and traffic conditions. Driving at a safe speed reduces the likelihood and severity of crashes.
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Other questions in the same category: Collision Prevention and Response
Regardless of fault, a crash report must be filed by the driver of a vehicle if the crash involves property damage of more than $500.You must file a Report of Traffic Accident Occurring in California (SR 1) with DMV within 10 days if you:Collisions can happen more often when:When you have a collision, you must make a written report to the California DMV:When a driver traveling at 30 MPH accelerates to 60 MPH, the impact is:If a driver triples the speed of a car, he/she increases its force of impact:If you're involved in a crash:Collisions tend to happen when:If you are involved in an accident, you must:Which of the following statements about collisions is true?
This question appears in the following DMV practice tests: