1. Acceleration

2. New Formula

3. Calculating Acceleration - Example Big Papi, from the Boston Red Sox, is stationary at the plate before hitting the ball. He runs 27.43 meters and reaches first base at a velocity of 2.30 m/s. It takes Papi 12 s to reach first base. Calculate Papi’s acceleration. G:E:S: U:S:

4. Kinematic Equations

5. Monday, 9/21 Unit 2: Linear Motion  On your warm-up respond to the questions below: Acceleration means there is a change in velocity (speeding up or slowing down) over a certain period of time. How do you think acceleration affects the distance an object travels?  Upcoming dates  Friday, 9/25 – Quiz  Friday, 10/2 – Unit 2 test

6. Kinematic Equation Review V f = V i + at V f 2 = V i 2 + (2aΔx) ΔX = ½ (V i + V f ) t ΔX = V i (t) + ½ at 2 ΔX = V f (t) - ½ at 2

7. Sample Problem # 1 A drag racer starts from rest and accelerates at 22.0 m/s 2 in 2 seconds. What is the car’s final velocity?

8. Sample Problem # 2 A drag racer starts from rest and accelerates at 22.0 m/s 2. What is the car’s final velocity after it travels 402 meters.

9. Sample Problem # 3 A drag racer starts from rest and accelerates to 120 m/s in 2 seconds. How far did the car travel?