Answer to Question #15662 in Mechanics | Relativity for Amanda eidson

Question #15662
a man walks across a linoleum floor. he was a weight of 250 pounds, and the soles of his shoes have a surface area of 37.20 in^2. what force in newtons and pressure in pascals will he exert on the floor as he walks across the floor?
1
Expert's answer
2012-10-03T11:37:02-0400
According to the second Newton's law the force exerted on the floor is

F = Mg = 250[p]*9.8[m/s²] = 113.4[kg]*9.8[m/s²] = 1111.3[N].

The pressure is

P = 1111.3[N]/37.20[in²] = 1111.3[N]/240.0[cm²] = 4.6[P].

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