PhysAug18

PhysAug18 - August 18 August 18 Physics In: In: A runner...

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Unformatted text preview: August 18 August 18 Physics In: In: A runner accelerates at 2 m/s2 from rest to his top speed in 5 seconds. What was his final velocity? How far did he go while he was accelerating? Objective: Objective: To practice the equation for displacement with constant acceleration. Success criteria To be able to solve velocity and acceleration problems Velocity and displacement Velocity and displacement with constant acceleration Equations: Velocity with constant acceleration: V2=V1 + at Displacement: Δd=V1t + ½ at2 A plane starting a rest at one end of a A plane starting a rest at one end of a runway undergoes a uniform acceleration of 4.8 m/s2 for 15 s before takeoff. What is its speed at takeoff? How long must the runway be for the plane to be able to take off? Homework faire Homework faire Synthesis Synthesis Synthesis: Synthesis: I own/don’t understand Out: A swimmer starts a race accelerating at 3 m/s for 4 seconds? What was his final velocity? How far did he go? ...
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