1. ACCELERATION

2. Acceleration- The rate of change in velocity of an object. (vector)
Acceleration = Change in Velocity
time
a= Δv/t
a= vf –vi vf= final velocity
t vi= initial velocity
unit: m/s2

3. a= Δv/t = 90km/hr-30km/hr 10 sec = 60km/hr =16.7m/s 10 sec 10sec
Ex: A car accelerates from 30km/hr to 90km/hr in 10seconds. What is the cars acceleration?
a= Δv/t
= 90km/hr-30km/hr
10 sec
= 60km/hr =16.7m/s
10 sec sec
=1.67m/s2

4. (-) indicates that the car is decelerating
Ex: A car traveling at 20m/s brakes and comes to a stop in 12 seconds. Find its acceleration.
a= Δv/t
a= (0m/s-20m/s)/12sec
a = -1.67m/s2
(-) indicates that the car is decelerating

5. GRAPHS Direct proportion. Constant accelerationV t
Negative slope. Constant deceleration V t

6. Graphs V
Constant velocity t
Constant zero velocity.
Not moving V t

7. V Slope = acceleration The area under the line is equal to:
Area = ½ (base x height)
Area = ½ (t x Δv)
Area = displacement

8. MOOSE