Question

QUESTION 3 A 40,000 kg truck is held up by 18 wheels. The air pressure inside of the tires is 60 psi 4.13 X 105 Pa. Suppose that this is also the pressure that the tires exerts on the ground. What is the area of each tire which presses on the ground? 0.072 m2 0.067 m2 0.053 m2 0.032 m2

Answer 1

- Mass of 18 wheels touch=18000 kg. for 1 wheels - 18000 Mass for 18 wheel 8 = 40,000 kg I for I Wheel = 40000 kg - P = P > F= 2 Fama *A= &= you a = 0.0053 a 18 x 4.18X105 (missing Не a = le m / с 2- then a=6.053 m