Equations Of Motion Flashcards

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1
Q

Equation 1

A

V = u + at

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2
Q

Equation 2

A

S = t(u+v)/2

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3
Q

Equation 3

A

S = ut + (at^2)/2

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4
Q

Equation 4

A

V^2 = u^2 + 2as

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5
Q

Deriving equation 1

A

a = (v-u)/t

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6
Q

Deriving equation 2

A

(u+v)/2
displacement = average velocity x time taken
s= t(u+v)/2

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7
Q

Deriving equation 3

A
V = u+ at 
S = t(u + v)/2 
Sub v from equation 1 
S = t(2u + at)/2
S = 2ut/2 + at^2/2 
S = ut + at^2/2
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8
Q

Deriving equation 4

A
V = u+ at 
S = t(u+v)/2
Sub for t from equation 1
S= (u+v)/2 x (v-u)/a 
2as=(u+v)(v-u) 
=v^2 -u^2 
V^2= u^2 + 2as
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