Connecting Linear and Rotational Motion
AP Physics 1 · Flashcards · Application
AP PHYSICS 1 · FLASHCARDS
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QUESTION
Find the linear velocity for an object rotating at
θ
=
4
rad/s
\theta = 4 \text{ rad/s}
θ
=
4
rad/s
with radius
r
=
0.5
m
r = 0.5 \text{ m}
r
=
0.5
m
.
QUESTION
Calculate the angular momentum for a point mass with mass
m
=
2
kg
m = 2 \text{ kg}
m
=
2
kg
, radius
r
=
3
m
r = 3 \text{ m}
r
=
3
m
, and velocity
v
=
4
m/s
v = 4 \text{ m/s}
v
=
4
m/s
.
QUESTION
Calculate the torque for a force of
10
N
10 \text{ N}
10
N
applied at
2
m
2 \text{ m}
2
m
from the pivot.
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ANSWER
τ
=
20
Nm
\tau = 20 \text{ Nm}
τ
=
20
Nm
. Apply
τ
=
r
F
\tau = rF
τ
=
r
F
:
τ
=
2
×
10
=
20
\tau = 2 \times 10 = 20
τ
=
2
×
10
=
20
Nm.
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