Why doubling your speed quadruples the distance needed to stop
In short: Understanding vehicle safety requires distinguishing between how fast you react and how quickly a car can physically halt. This video breaks down the physics of stopping distances for students preparing for 2027/28 exams.
Total stopping distance is the sum of two distinct phases: thinking distance and braking distance. Thinking distance is the gap covered while a driver processes information, which increases proportionally with speed. Braking distance occurs once the brakes are applied, influenced by the vehicle's mass, brake condition, tyre state, and road surface (such as ice or wet pavement).
The physics of motion dictates that braking distance does not increase linearly with speed; instead, it increases more significantly. For example, doubling a vehicle's speed can quadruple its braking distance. The video also highlights how external factors like tiredness, alcohol, drugs, and distractions can dangerously extend a driver's reaction time.
Opens the Intellect+ feed with this card first. Swipe up for the next one.
Sources
- Summary by Intellect · source: GCSE Physics - Stopping Distances - Thinking Distance | Braking Distance (2027/28 exams)
To cite this card, link to https://intellectplus.co.uk/app/science-gcse-physics-stopping-distances-thinking-distance-braking-di.
How we source, check and correct cards: Editorial standards.
General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.
Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?
Related
More in Physics · More in Science · Latest · A–Z · All topics
