Module 3 Flashcards
How do you find instantaneous speed?
By drawing a tangent on a distance/time graph, and finding the gradient of that tangent
Define Istantaneous Speed
The speed the car was going at a specific point in time
The area under a velocity/time graph is the?
Displacement
On a velocity/time graph, what does the gradient represent?
The acceleration
What are the four SUVAT equations?
v=u+at s=(u+v)/2 *t s=ut+05at^2 v^2=u^2-2as
Describe Thinking Distance and Braking Distance
Thinking Distance: The distance traveled between the driver noticing an obstruction and applying the brakes Braking Distance: The distance traveled between applying the brakes and the vehicle coming to a stop
Give an equation relating to reaction time, speed and thinking distance
Derive from Speed=Distance/Time, so Speed=Thinking Distance/Reaction Time
When you work out projectile motion, what must you do?
Values must be seperated into horizontal and vertical components, and they must be worked out seperately using SUVAT equations. Time can be used to link them as it is a scalar quantity.
