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?

in progress 0
Thu Cúc 5 months 2021-08-18T17:11:03+00:00 1 Answers 5 views 0

Answers ( )

    0
    2021-08-18T17:12:46+00:00

    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.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )