Velocity and Acceleration

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Presentation transcript:

Velocity and Acceleration Ch. 2 Pg. 40 - 69

Objectives Describe and analyze motion in one dimension using equations for acceleration. Understand the relationship between acceleration, displacement, time, and velocity.

Velocity with Uniform Acceleration vf = vi + aΔt

Example: A plane starting at rest at one end of a runway undergoes a uniform acceleration of 4.8 m/s2 for 15 s before takeoff. What is the plane’s speed at takeoff?

Displacement with Uniform Acceleration Δx = viΔt + ½ aΔt2

Example How long must the runway be for the plane to takeoff?

A car with an initial speed of 31 A car with an initial speed of 31.4 km/h accelerates at a uniform rate of 1.2 m/s2 for 1.3 s. What is the final speed of the car? What is the displacement of the car?