I have to solve for WHAT? Kinematics Equations.

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Presentation transcript:

I have to solve for WHAT? Kinematics Equations

Average Velocity These equations are only good for situations where we have CONSTANT VELOCITY NO ACCELERATION

Average Acceleration If we assume CONSTANT ACCELERATION then… aavg is equal to ACCELERATION at ALL TIMES

Constant Non-Zero Acceleration “Final Velocity Equation” “Displacement Equation” “Shortcut Equation” DOES NOT INCLUDE TIME!

Example #1 A train starts from rest and leaves Greenburg station and travels for 500. meters with an acceleration of 1.20 meters per second2. Calculate the train’s final velocity How long does it take the train to reach its final velocity?

Example #2 A driver traveling at 85 miles per hour sees a police car hiding in the trees 2.0 miles ahead. He applies his brakes, decelerating at -500 miles per hour2. If the speed limit is 55 mph, will he get a ticket? What would his acceleration need to be to not get a ticket?

SUMMARY List the 5 (+1) equations you will primarily use when solving Kinematics problems Which ones assume NO acceleration?