[填空题]
A person has a reasonable chance of surviving; 4kjg4phovra :a+ 4qu+5vlzi an automobile crash if 0pr 2ljmavdz ch 39:d 7(c(exmthe deceleration is no more than 3rz 70 hl3(pxed (m9c2:mdc avj0 " g 's." Calculate the force on a 70$-\mathrm{kg}$ person undergoing this acceleration. What distance is traveled if the person is brought to rest at this rate from 100 $\mathrm{~km} / \mathrm{h}$ ?
