PHYSICS 5A Chapter 2.2, 2.3, 2.4, 2.5: Physics 5A Chapter 2.2 - 2.5- Uniform Motion, Instantaneous Velocity, Acceleration, & Motion with Constant Acceleration
Document Summary
Uniform motion: straight-line motion in which equal displacements occur during any successive equal-time intervals. Equations of uniform motion vx=(cid:3045)(cid:3046)(cid:3032)(cid:3045)(cid:3048)=(cid:3051)(cid:3047)=(cid:3051) (cid:3033)(cid:3039) (cid:3051) (cid:3047)(cid:3039) (cid:3047) (cid:3033)(cid:3039) (cid:3047) (cid:3047)(cid:3039) rearranged. From velocity to position, one more time. The displacement x is proportional to the time t. The displacement x is equal to the area under the velocity graph during interval t. This is because if you look at the equation above, the velocity times the time equals the change in position or in other words the displacement n xt=xi + vx t. )nstantaneous velocity: an object"s velocity at a specific instant of time. Instantaneous velocity vx at time t = slope of position graph at time t. The slope of the tangent line is the instantaneous velocity at that instant of time. The instantaneous velocity at time t is the average velocity during a time interval t centered on t as t approaches zero.
