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henpen

  • 3 years ago

Friction problem

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  1. henpen
    • 3 years ago
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    |dw:1355575152488:dw|

  2. henpen
    • 3 years ago
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    \[\mu=\frac{F_F}{R}=\frac{4+5\sin(60)}{12-5\cos(60)}=0.877\]

  3. henpen
    • 3 years ago
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    |dw:1355575247470:dw| What is the acceleration of each of the blocks now?

  4. henpen
    • 3 years ago
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    |dw:1355575315635:dw|

  5. henpen
    • 3 years ago
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    \[F_2=R\mu=9.5*0.877=8.33\]So no acceleration of the bottom thing. Is this correct?

  6. henpen
    • 3 years ago
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    |dw:1355575432583:dw|

  7. henpen
    • 3 years ago
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    Because \[0.65+4 <8.33\]

  8. henpen
    • 3 years ago
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    Is this correct?

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