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A uniform circular disc of mass 200 g an...

A uniform circular disc of mass 200 g and radius 5 cm is rotated about one of its dimeters at an angular speed of 15 rad/sec. What is the angular momentum about the axis of ratation ?

A

`16 xx 10 ^(-2) Js`

B

`18.75 xx 10 ^(-4) Js `

C

`19 xx 10 ^(-4) Js `

D

`22 xx 10 ^(-2) Js`

Text Solution

AI Generated Solution

To find the angular momentum of a uniform circular disc rotating about one of its diameters, we can follow these steps: ### Step 1: Identify the given values - Mass of the disc (m) = 200 g = 0.2 kg (since 1 g = 0.001 kg) - Radius of the disc (r) = 5 cm = 0.05 m (since 1 cm = 0.01 m) - Angular speed (ω) = 15 rad/sec ### Step 2: Calculate the moment of inertia (I) ...
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Knowledge Check

  • A homogeneous disc of mass 2 kg and radius 15 cm is rotating about its axis with an angular velocity of 4 rad/s. the linear momentum of the disc is

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