Anonymous
Anonymous asked in Science & MathematicsPhysics · 9 months ago

What is the upward force exerted on the board by the support?

A long uniform board weighs 66.1 N (13.2 lbs) rests on a support at its mid point. Two children weighing 491.0 N (98.2 lbs) and 371.0 N (74.2 lbs) stand on the board so that the board is balanced. What is the upward force exerted on the board by the support?

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  • oubaas
    Lv 7
    9 months ago
    Favourite answer

    reaction force Fr = Weight force Fw = 66.1+491+371 = 928.1 N up

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  • Anonymous
    9 months ago

    Weight of the board plus the weights of both kids.

    Simple addition.

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