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A boat’s propeller has a rotational inertia of 4.0 kg · mº. After a constant torque is applied for 12 s, the rad rad prope
Question
A boat’s propeller has a rotational inertia of 4.0 kg · mº. After a constant torque is applied for 12 s, the
rad
rad
propeller’s angular speed changes from a clockwise 6.0 to a counterclockwise 6.0
S
S
What was the torque applied to the propeller?
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Physics
5 months
2021-08-18T17:11:03+00:00
2021-08-18T17:11:03+00:00 1 Answers
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Answers ( )
Answer:
4.0
Explanation:
τ
=
Δt
Iω
f
−Iω
i
=
Δt
I(ω
f
−ω
i
)
=
12s
(4.0kg⋅m
2
)(6
s
rad
−(−6.0
s
rad
))
=4.0
s
2
kg⋅m
2
=4.0N⋅m
Hint #33 / 3
The answer is 4.0\,\dfrac{\text {kg} \cdot \text m^2}{\text s}4.0
s
kg⋅m
2
4, point, 0, start fraction, start text, k, g, end text, dot, start text, m, end text, squared, divided by, start text, s, end text, end fraction.