Chapter 2: Motion along a Straight LineIntroductionMotion Along a Straight LineVelocityAccelerationSample Problem II–2Another Look at Constant AccelerationFree-FallChapter 2: Motion along a Straight LineIntroductionMotion along a straight line–Motion–Position and Displacement–Average velocity and average speed–Instantaneous velocity and speed–Acceleration –Constant acceleration: A special case–Free fall accelerationMotion Along a Straight LineEverything moves!Classification and comparison of motion kinematicsSimplification–Motion along straight line–Forces cause motion–Moving object is a particle or moves like a particleDisplacementDisplacement is a vector quantity. It has both a direction and magnitude!VelocityAverage velocity Average speedInstantaneous velocityAccelerationAverage accelerationInstantaneous accelerationConstant accelerationSample Problem II–2An elevator is initially stationary, then moves upward (which we take the positive direction of x), and then stops. Plot v as a function of time.(a) x(t) curve for an upward moving elevator cab(b) v(t) curve for the cab. Note v = dx/dt!(c) a(t) curve for the cab. Note a =dv/dt!http://webphysics.ph.msstate.edu/Another Look at Constant AccelerationIntegration of accelerationIndefinite integral or anti–derivativeConstant of integrationYou will learn about this in integral
View Full Document
Unlocking...