A person lies on bed of iron nails does not injured How? What is reason ?
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PRESSURE IS ACTING ON THE HUMAN BODY,BETWEEN THE IRON NAIL BED AND THE BODY.....
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.Pressure is the application of force over a particular area. In mathematical terms, pressure is equal to force divided by area.
With more force comes more pressure, and with more area comes less
pressure.A bed of nails
has lots of points that are close together there's a lot of surface
area for the body to cover. Hundreds of nails support the weight of your
body instead of just one. Typically, your body doesn't exert enough
pressure on any one nail for it to break the skin. The resulting
force is distributed over all of the nails, so you shouldn't be injured.
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