1. Equations of Motion

2. Uniform Motion d: distance travelled [m, km] v: speed [m/s, km/h]
∆t: length of time [s, h]

3. Uniform Acceleration Cont. (Accelerated Motion)
: initial velocity [m/s]
: final velocity [m/s]
: acceleration [m/s2]
: displacement [m]
: length of time [s]

4. How long would it take a laser beam to go to the Moon and back if the distance to the Moon is 3.8 x 108 m?
t = 2.5 s

5. How far would a car move in 4. 8 s if its velocity changed from 14
How far would a car move in 4.8 s if its velocity changed from 14.0 m/s to m/s?
d = 72 m

6. A fastball pitcher can throw a baseball at 100 km/h
A fastball pitcher can throw a baseball at 100 km/h. If the windup and throw take 1.5 s, what is the acceleration of the ball?
a = 19 m/s2

7. Uniform Acceleration Cont. (Accelerated Motion)
: initial velocity [m/s]
: final velocity [m/s]
: acceleration [m/s2]
: displacement [m]
: length of time [s]

8. Equations of Motion
Uniform Motion
Uniform Acceleration

9. If you accelerate (slow down) to a stop at -0
If you accelerate (slow down) to a stop at -0.8 m/s2 by applying brakes, how far do you travel when your initial velocity is a) 10 km/h?
d = 4.9 m

10. What is the average acceleration of the Blue Flame speed car if its initial velocity is 1000 km/h and it comes to a complete stop in a distance of 2.0 km? Interpret the sign of your answer.
a = -19 m/s2

11. Ex: Motion of multiple objects
Amber and Jane are separated by a distance of 8.0 m. Amber walks at a constant speed of 1.0 m/s toward Jane. Jane, overly excited as she’s known, started running from rest and accelerates at a constant rate of 1.4 m/s2.
How long will they run into each other; and where will they meet?