Estimating Decelerating Forces (AQA GCSE Physics Combined Science): Flashcards

Reduction in speed or negative acceleration

Friction or air resistance

$F = \frac{m \cdot \Delta v}{\Delta t}$

Decelerating force in Newtons

Mass of the object in kilograms

Change in velocity in metres per second

Time over which deceleration happens in seconds

Heavier vehicles need more force to decelerate in same time

Faster vehicles need greater force to stop in given time

Reduce friction, making it harder to decelerate

Crucial for generating necessary decelerating force

Braking distance increases with speed