Linear Motion Equations - smart phone physics

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  • Created by: Mal
  • Created on: 19-03-14 11:42
Preview of Linear Motion Equations - smart phone physics

First 42 words of the document:

Linear motion
Linear motion is motion in
a straight line.
It can involve zero or
constant positive or
negative values of
acceleration and may
include a reversal in the
direction of travel.

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Page 2

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Linear motion
Although linear, the
motion does not have to
be horizontal. It could be
vertical, with the object
moving up and/or down.…read more

Page 3

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Linear motion
In fact, if you think about
it, many equations in
mechanics represents
properties acting in
straight lines:
F = ma,
F and a are colinear
KE = ½mv2,
This is linear kinetic
energy (as opposed to
rotational kinetic energy)…read more

Page 4

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Linear motion
We're going to look at four
more equations. These
are the equations of
uniformly accelerated
motion; also known as the
s.u.v.a.t. equations
because of the symbols
they use.…read more

Page 5

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Linear motion
Learn how to derive these
equations using the
method shown here AND
practice re-arranging and
applying them.
They are an examiner's
favourite.…read more

Page 6

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Graph connection
An object, already moving
with an initial velocity, u
accelerates, increasing its
velocity to v in a time t.…read more

Page 7

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The symbols
s ­ distance or
displacement, m
u ­ initial velocity, ms-1
v ­ final velocity, ms-1
a ­ acceleration, ms-2
t ­ time taken, s…read more

Page 8

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Graph gradient
Like any graph, the gradient is
(the change in y)/ (the change
in x).…read more

Page 9

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Gradient = a
But the gradient of a
velocity-time graph is
acceleration.…read more

Page 10

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a = (v-u)/t
at = v - u
u + at = v
v = u +at…read more


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