[填空题]
During a Chicago storm, winds can whip horirrqjphvu s;4kq mwm td7rv7(5w5 + ;h5zontall(x:0b lb7pzcfaw 1,wky at speeds of 100km/h If the air strikes a person at the rate of 40:( xal w,wc1kb p7zfb0kg/s per square meter and is brought to rest, estimate the force of the wind on a person. Assume the person is 1.50 m high and 0.50 m wide. Compare to the typical maximum force of friction $\mu\approx1.0$ between the person and the ground, if the person has a mass of 70 kg. N
$F_{on person}$ $F_{fr}$