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Dynamics
Power Work done
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Cards (16)
Wd = Fs
work done
linear
=
force
x
displacement
P = Wd/t
Power
linear
=
work done
x
time
P = Fv
Power
linear
=
force
x
velocity
W
d
=
Wd =
W
d
=
T
θ
T\theta
Tθ
Work done
Angular
=
Torque
x
Angular
displacement
P
=
P =
P
=
T
ω
T\omega
T
ω
Power
angular
=
Torque
x
Angular
velocity
E
f
f
=
Eff=
E
ff
=
P
o
u
t
/
P
i
n
P_{out}/P_{in}
P
o
u
t
/
P
in
Efficiency
= power
out
/ power
in
WD = Fs
Work
done
=
Force
x
displacement
1
Nm
= 1 J
Wd in
Joules
J
Power in
watts
W
1
J
/
s
= 1 W
E
p
=
E_p =
E
p
=
m
g
h
mgh
m
g
h
Potential
Energy =
mass
x
gravity
x
height
E
p
=
E_p =
E
p
=
E
k
E_k
E
k
Potential
energy =
Kinetic
energy
E
k
r
o
t
=
Ek_{rot}=
E
k
ro
t
=
1
2
I
ω
2
\frac{1}{2}I\omega^2
2
1
I
ω
2
Rotational
Kinetic
energy =
0.5
x moment of
inertia
x
angular
velocity
^
2
E
k
l
i
n
e
a
r
=
Ek_{linear} =
E
k
l
in
e
a
r
=
1
2
m
v
2
\frac {1}{2} mv^2
2
1
m
v
2
Linear
kinetic
energy =
0.5
x
mass
x
velocity
^
2
To solve angular power questions first solve
Torque
and how many
revolutions
and convert to
radians
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