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Damm [24]
2 years ago
15

The motion of a car is represented as shown. The average

Physics
1 answer:
larisa86 [58]2 years ago
7 0

Average velocity :

  • \boxed{ \boxed{ \frac{displacement }{time} }}

  • \dfrac{20}{2}

  • 10 \: ms {}^{ - 1} East

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A woman with a mass of 52.0 kg is standing on the rim of a large disk that is rotating at an angular velocity of 0.470 rev/s abo
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Explanation:

It is given that,

Mass of the woman, m₁ = 52 kg

Angular velocity, \omega=0.47\ rev/s=2.95\ rad/s

Mass of disk, m₂ = 118 kg

Radius of the disk, r = 3.9 m

The moment of inertia of woman which is standing at the rim of a large disk is :

I={m_1r^2}

I={52\times 3.9^2}

I₁ = 790.92 kg-m²

The moment of inertia of of the disk about an axis through its center is given by :

I_2=\dfrac{m_2r^2}{2}

I_2=\dfrac{118\times (3.9)^2}{2}

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Total moment of inertia of the system is given by :

I=I_1+I_2

I=790.92+897.39

I = 1688.31 kg-m²

The angular momentum of the system is :

L=I\times \omega

L=1688.31 \times 2.95

L=4980.5\ kg-m^2/s

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Mrs. Roberts' class was designing science experiments. Carl and his partner decided to use the outdoor classroom as their labora
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