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| Figure 8.18
In accordance with the definition for acceleration, the
change in velocity (Δv) over a given time
is represented graphically. There is a reduction in the
vertical velocity and an increase in horizontal component
velocity from v initial to v final component |
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| Figure 8.19
This represents the same parameters as Figure 8.18, however,
the differences lie in the component velocity directions.
The initial component velocities have the same magnitude
but are in the opposite direction. The triangle rule is
used to accentain the resultant vector (Δv) |
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|
| Figure 8.20 The
component velocity vectors are represented in (a) and
the corresponding component acceleration vectors are represented
in (b) |
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| Figure 8.21 (a)
Diagram shows the change between velocity vectors v1
and v2. There is no directional change.
(b) Represents the velocity change over time as an acceleration
vector a and the component axes αx and
αy |
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|
| Figure 8.22
(a) Two velocity vectors and the corresponding change
in direction. Velocity occurs in a given direction and
so a change in direction indicates a change in velocity.
This is represented in (b) as an acceleration vector |
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|
| Figure 8.23
General acceleration combines velocity and directional
changes. The acceleration vector is the resultant of a
change in velocity and direction |
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| Figure 8.25
The relationship between displacement and time which represents
the gradient at time (t) |
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| Figure 8.26
Instantaneous velocities can be found graphically by drawing
tangents to the curve at specific times and calculating
gradients. Velocity-time data can be plotted |
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