PHYSICS

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A while crossing a bridge that is 3.6 km long, a truck weighing 9000 N is stalls 0.6 km from the left side of the bridge
Calculate the torque about the left support due to the truck

  • PHYSICS -

    Wouldn't it depend on the weight of the bridge? OK, the bridge is massless.


    about the left side: 9000*.6 is the torque due to the truck. Of course, the bridge weight matters, as does the right support holding half the bridge.

  • PHYSICS -

    see that's where is confused me. It didn't give me anything for the weight of the bridge.
    And I tried 9000*.6 and it's still saying i'm wrong.
    This is kind of what the diagram looks like. O is the truck

    F left
    ^
    I
    I ^ F right
    I I
    I_____O___________________I
    I
    I
    I
    V weight

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