Question

manufacturer for car tyres estimates that the area of car tyre in contact with the road is about the same as the area of a person in contact with the ground. car weighs 10000 Newton and personal weighs 500 Newton. calculate the ratio of the pressure of a car on ground with the pressure of a person standing on the ground.

Pls help!!

Answer 1

P'=F'/A Pressure of tires

pressure of 1 tire =P'/4

P =F/A =Pressure of man

(P'/4)/P =F'/A×A/F===(10000/4)/100

==25/1

PRESURE OF CAR/PRESSURE OF MAN=

25/1×4=100/1