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Motion Equations

Motion Equations. Derived Equations. Some useful equations can be derived from the definitions of velocity and acceleration. Kinematic Equations.

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Motion Equations

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  1. Motion Equations

  2. Derived Equations • Some useful equations can be derived from the definitions of velocity and acceleration

  3. Kinematic Equations

  4. An airplane must reach a takeoff speed of at least 27.8 m/s and can accelerate at 2.00 m/s2. Is a 150 m long runway sufficient to reach this speed? What is the minimum length necessary?

  5. How long does it take a car to cross a 30.0 m wide intersection if it accelerates at 2.00 m/s2?

  6. A car decelerates at a rate of –6.0 m/s2. Calculate the total stopping distance for an initial velocity of 100 km/hr.

  7. A baseball pitcher throws a fastball with a speed of 44 m/s. Find the average acceleration if the ball moves through a distance of 3.5 m from behind the body to the point of release.

  8. How fast must an airbag inflate in order to protect a person traveling at 100 km/hr (60mph)? The bag crumples upon impact a distance of about 1.0 m.

  9. Velocity – Time Graphs • Distance is the area under a velocity-time graph curve d = (5 x 10) + (1/2 x 5 x10) = 75m

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