Aim: How can we solve for various aspects of a moving object?

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Presentation transcript:

Aim: How can we solve for various aspects of a moving object? Kinematics Aim: How can we solve for various aspects of a moving object? Censored

The study of moving objects Final Velocity Equation Kinematics The study of moving objects Final Velocity Equation Time Unit: seconds (s)

The Distance/Displacement Formula Unit: meters (m) Time Unit: seconds (s)

The “Shortcut” Equation Distance/Displacement Unit: meters (m)

Constant speed only! Zero acceleration Kinematics Formulas Constant speed only! Zero acceleration

Constant speed / Constant velocity Physics Phrases Phrase Meaning Where / How far d = ? When / How long t = ? How fast v = ? Starts at rest vi = 0m/s Comes to rest / Stops vf = 0m/s Slows down / Brakes a = (negative value) Constant speed / Constant velocity a = 0m/s2

Example #1 If a new concept car can accelerate at a rate of 12m/s2, (a) how long will it take to reach a top speed of 48m/s if it starts from rest? (b) How far did the car travel within this time? (a) (b)

Example #2 While driving on the highway, a deer suddenly jumps in front of your car. You slam on the brakes and decelerate at 20m/s2. After coming to rest, the deer frolics away unscathed. You look in the rearview mirror and notice a skid mark on the road that is approximately 33m long; how fast were you going before Bambi decided to be a jerk?

SUMMARY List all of the Kinematics Formulas Describe some Physics Phrases you will encounter