Stopping distance and impulse

• Thinking distance - the distance between seeing an object and applying the brakes
• Braking distance - the distance travelled from applying the brakes to completely stopping
• Braking distance can be affected by how worn the tyres/brakes are, adverse conditions and the condition of the road
• Stopping distance - The distance travelled in both the thinking and braking distance
• A person's reaction time is approximately 0.2-0.9 seconds.
• The reaction time can be affected by tiredness, alcohol, drugs, and distractions.
• Force = mass x (final velocity - initial velocity ) / time