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Can someone please answer this? I am really lost.
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Can someone please answer this? I am really lost.

Can someone please answer this? I am really lost.-example-1
User Rabindra
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3.7k points

1 Answer

6 votes

Answer:

8.0 rad/s

Step-by-step explanation:

I₁ = 1.0 kgm², ω₁ = -20.0 rad/s (clockwise is positive direction)

I₂ = 4.0 kgm², ω₂ = 15.0 rad/s

Angular momentum conservation:

I₁ω₁ + I₂ω₂ = (I₁ + I₂)ω

1.0 x (-20.0) + 4.0 * 15.0 = (1.0 + 4.0)ω

40.0 = 5.0ω

so ω = 8.0 rad/s

User Art Taylor
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