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You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this force be if the coefficient of static friction with the wall is 0.44?

  • Physics -

    u * F = 7.01 N.
    0.44 * F = 7.01
    F = 15.93 N.

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