Physics: one-dimensional kinematics (17)





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Published on Oct 16, 2008

Physics: How to solve kinematics problems about general one-dimensional motion with constant acceleration.

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For a printable document containing the kinematics equations and the systematic five-step kinematics method used in these videos, go to my website.

After completing this series on general one-dimensional motion, you can proceed to the next series, on one-dimensional projectile motion. Click here for the next series:

For a list of all the available video series, arranged in suggested viewing order, go to my website.

For a playlist containing all the videos in this series, click here:

(1) Intro
(2) Always write down the sign, not only for negative numbers, but also for positive numbers. The kinematics variables and their units
(3) The kinematics variables for the x-component and the y-component
(4) The kinematics equations for the x-component
(5) The missing variables. The kinematics equations for the y-component
(6) The systematic, five-step method for solving kinematics problems
(7) An example, illustrating how to use the systematic five-step method
(8) The example concluded
(9) Another example
(10) The example concluded
(11) Another example
(12) The relationship between velocity and acceleration. Velocity tells you which way you're going. Acceleration does NOT tell you which way you're going; in one dimension, acceleration tells you whether you're speeding up or slowing down
(13) The relationship between velocity and acceleration, continued. When the acceleration is parallel to the velocity, you're speeding up; when the acceleration in antiparallel to the velocity, you're slowing down. "Slowing down" does not mean "negative acceleration"
(14) Don't compare the length of the acceleration vector with the length of the velocity vector. If an object is accelerating to the left, it may or may not be moving left right now; but if it continues to accelerate to the left for long enough, eventually it will indeed be moving left
(15) Summary of the relationship between velocity and acceleration. Don't use the word "deceleration"
(16) An example
(17) The example continued
(18) The example concluded. Constant-acceleration kinematics displays symmetry--if two points on the path have the same displacement, then the object has the same speed at both points
(19) Another example
(20) In the instant that you reverse direction, your velocity is zero
(21) An example
(22) The example concluded
(23) Two more examples
(24) Another example
(25) The example concluded
(26) Another example
(27) The example concluded
(28) "Zero acceleration" means "constant velocity"; in one dimension, "zero acceleration" means "constant speed"
(29) How to solve kinematics problems with constant velocity (zero acceleration)
(30) Constant velocity kinematics, continued
(31) Constant velocity vs. constant acceleration
(32) An example, involving constant velocity and multiple objects
(33) The example continued
(34) The example concluded

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