Chapter 2: Motion along a Straight Line
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Flashcardsmotion diagram
A(n) shows the particles position at various instants as well as arrows to represent the particles velocity at each instant.
Free fall
is a case of motion with constant acceleration.
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motion diagram
A(n) shows the particles position at various instants as well as arrows to represent the particles velocity at each instant.
Free fall
is a case of motion with constant acceleration.
instantaneous velocity
The is the limit of the average velocity as the time interval approaches zero.
When is the x- velocity positive relative to the tangent of the slope
If the tangent to the x-t curve slopes upward to the right, then its slope is positive, the x-velocity is positive, and the motion is in the positive x-direction.
When is the x- velocity negative relative to the tangent of the slope
If the tangent slopes downward to the right, the slope of the x-t graph and the x-velocity are negative, and the motion is in the negative x-direction.
average acceleration
The change in the x-component of velocity Δv(x), divided by the time interval Δt is known as average acceleration.
instantaneous acceleration
The instantaneous acceleration is the limit of the average acceleration as the time interval approaches zero.
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