The air pressure in the tires of a&nbsp;980−kg&nbsp;car is&nbsp;3.0×105&nbsp;Nm2. Determine the average area of contact of each tire with the road.

Tire contact area There must be; n=4 tires and assuming an even load share between the tires then the force on each tire due to the weight is; F=mgn with; m=980 kg and the average contact area; A can be calculated; F=PA A=FP A=mgnP A=980⋅9.84⋅3×105 A=8×10−3 m2 Result: 8×10−3 m2

Best solutions to - "The air pressure in the tires of a980−kgcar..."

High School
Physics
Force, Motion and Energy
Newton's Second Law

Lloyd Allen

Answered question

2021-11-21

The air pressure in the tires of a $980 - k g$ car is $3.0 \times 10^{5} \frac{N}{m^{2}}$ . Determine the average area of contact of each tire with the road.

Answer & Explanation

Clara Clark

Beginner2021-11-22Added 17 answers

Tire contact area
There must be;

n = 4

tires and assuming an even load share between the tires then the force on each tire due to the weight is;

F = \frac{m g}{n}

with;

m = 980 k g

and the average contact area; A can be calculated;

F = P A

A = \frac{F}{P}

A = \frac{m g}{n P}

A = \frac{980 \cdot 9.8}{4 \cdot 3 \times 10^{5}}

A = 8 \times 10^{- 3} m^{2}

Result:

8 \times 10^{- 3} m^{2}

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