Anonymous
Anonymous asked in Science & MathematicsPhysics · 2 months ago

A block of mass m=1.17kg is tied to a string and swings around in a vertical circle of radius R=1.60m.?

A block of mass m=1.17kg is tied to a string and swings around in a vertical circle of radius R=1.60m. The string will snap if it experiences a tension force above 88.2N. What is the maximum speed the block can have at the bottom of the circle?

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  • 2 months ago
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    g-force is mg: 1.17kg × 9.81m/s^2 = 11.48 Newtons 

    88.2 - 11.48 = 76.72 N

    Centripetal force is mv^2/r

    (76.72×1.6/1.17)^.5 = velocity = 10.24 m/s

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  • Anonymous
    2 months ago

    88.2 = m*(g+V^2/r)

    m*V^2/r = 88.2-1.17*9.8 = 76.73

    V = √76.73*1.6/1.17 = 10.2 m/sec

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