imagine that you have just bought your first home and one of its amenities is a

Question

imagine that you have just bought your first home and one of its amenities is a built in ironing board.the base of the ironing board is hinged to a wall in a cupboard and it lowers from a vertical to a horizontal position when you open the cupboard door. unfortunately the onlysupport for the board is a hinge,which locks in place.you quickly find the board needs more support, so you want to add legs directly under the center of mass. the weight of the board is stamped on the underside. how would you use common household items (like a bathroom scale) to find the center of mass of the non-uniform ironing board? .... (draw a free body diagram if you can)

Explanation / Answer

Measure L the length of the board Use the scale to find F the force on the scale placed underthe end of the board XCM * W = F * L      balancing torque about the hinge Solve for XCM

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