What pressure does the car exert on the ground?! PLEASE HELP!!
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What pressure does the car exert on the ground?! PLEASE HELP!!

[From: ] [author: ] [Date: 11-05-06] [Hit: ]
The area will be the amount of tires (4?) * 0.12*0.18 meters.The pressure will be F/Area = 1060*9.81/(4*0.......
A car tire makes contact with the ground on a rectangular area of 12 cm by 18 cm. The car's mass is 1060 kg. What pressure does the car exert on the ground?

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Pressure is Force/Area.

The force the car is exerting is F = m*a = m*g with the gravitational acceleration of 9.81 (in Holland at least).

The area will be the amount of tires (4?) * 0.12*0.18 meters.

The pressure will be F/Area = 1060*9.81/(4*0.12*0.18) = 120354 Pascals (N/m^2)

Or per tire: 3.01*10^4 Pascal

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Pressure is measured in newtons per square meter. First solve for area of contact on the ground.
Area of tire x four tires

(0.12m x 0.18m) x 4 = surface area.
surface area = 0.0864

Then solve for the cars weight in newtons. (w = mg)
1060 x 9.81 = 10,398.6N

Pressure is newtons per meter, so dissolve force by surface area.
10,398.6/0.0864 = 120,354.167N/m^2 or 120,000N/m^2 in significant figures

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P = F/A

F = m*g/4 = 2597 N
A = .18*.12 = .0216 m²

P = 2597/.0216 = 120231 Pa
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