A truck weighing 50 kN applies a pressure of 250 kPa to the road.
| September 9, 2021 | education
A truck weighing 50 kN applies a pressure of 250 kPa to the road. Determine the contact area of the truck’s tires with the road.
F = 50kN = 50000N
P = 250kPa = 250000Pa
S-?
Pressure P is called the force F applied to a unit area S and is determined by the formula P = F / S. Let us express the area S = F / P. Let’s substitute in the formula the values S = 50000N / 250000Pa = 0.2 m2.
Answer: the area S of contact of the truck tires with the road 0.2 m2
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