Question

An SUV h as a mass given by m = 950 kg. Assuming this SUV has four tires, find the area each tire on the road íf the pressure in each tire is 35 psi (lb./in^2) (Use 1 N/m^2 = 1.45 x10^-4 Ib./in^2)

Answer 1

9.66 x 10⁻³ m²

Step-by-step explanation:

A = Area of each tire on the road

P = Pressure in each tire = 35 psi = 35 lb/in² =
`(35)/(1.45* 10^(-4))` N/m² = 2.41 x 10⁵ N/m²

m = mass of the SUV = 950 kg

n = number of tires = 4

Using equilibrium of force in vertical direction

n P A = mg

(4) (2.41 x 10⁵) A = (950) (9.8)

A = 9.66 x 10⁻³ m²