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UNIT 2
FORMULA SHEET
For constant acceleration along xaxis:
Δ
v
x
=
v
fx
–
v
ix
=
a
x
Δ
t
Δ
x
= 1/2 (
v
fx
+
v
ix
)
Δ
t
Δ
x
=
v
ix
Δ
t
+
1
2
a
x
Δ
t
2
v
2
fx
–
v
2
ix
= 2
a
x
Δ
x
v
avx
=
v
fx
+
v
ix
2
For constant angular acceleration:
Δ
ω = ω
f
–
ω
i
=
α Δ
t
Δ
θ =
1/2 (
ω
f
+
ω
i
)
Δ
t
Δ
θ =
ω
i
Δ
t +
1
2
α
x
Δ
t
2
ω
2
f
–
ω
2
i
= 2
α Δθ
ω
av
=
ω
fx
+
ω
ix
2
Average angular velocity and acceleration
ω
av
=
θ
f
–
θ
i
t
f
–
t
i
=
Δ
θ
Δ
t
α
av
=
ω
f
–
ω
i
t
f
–
t
i
=
Δ
ω
Δ
t
Angular and linear variables
s
=
r
Δ
θ
v
t
=
r

ω

a
t
=
r

α

a
r
=
v
2
r
=
ω
2
r
=
v


Frequency and period
f
=
1
T

 =
v
r
=
2
π
f
Satellite in circular orbit
v
=
GM
r
T
2
=
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 '08
 RICHARDSON, B
 Physics, Acceleration

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