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matrenka [14]
4 years ago
7

Please answer this question

Physics
2 answers:
ElenaW [278]4 years ago
8 0

Answer:

120

Explanation:

30 percent of 400 is 120

Oliga [24]4 years ago
5 0

Answer:

120

Explanation:

30% of 400 is 120 I believe

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Answer:

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Explanation:

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mass of wheel(M) = 3 Kg

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when mass attached at the edge

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I \omega_i = I' \omega_f

(Mr^2) \times 800 = ( M r^2 + m r^2) \omega_f

M\times 800 = ( M + m )\omega_f

3\times 800 = (3+1.1)\times \omega_f

2400 = (4.1)\times \omega_f

\omega_f = 585.37 \ rev/s

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