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yanalaym [24]
3 years ago
6

1

Physics
1 answer:
s344n2d4d5 [400]3 years ago
8 0

Answer:

\large \boxed{\mathrm{40 \ Nm}}

Explanation:

\sf Moment \ (Nm) = Force \ (N) \times Distance \ from \ pivot \ (m)

M=20 \times 2

M=40

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Answer:

v_{2f} = \frac{2vm_1}{m_2 + m_1}

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P_i = m_1v

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So using the law of momentum conservation

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m_1v = m_1v_{1f} + m_2v_{2f}

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m_1v^2 = m_1\left(v^2 - 2vv_{2f}\frac{m_2}{m_1} + v_{2f}^2\frac{m_2^2}{m_1^2}\right) + m_2v_{2f}^2

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Answer:

c)F_{net} = 0.640 kN

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