Calculate Compression Stress for 500 kg Car Tire Ring

AI Thread Summary
To calculate the compression stress on a 500 kg car tire ring made of aluminum alloy, the formula used is stress = F/A. The force is derived from the total weight of the car and tire ring, calculated as (500 kg + 10 kg) divided by four tires, resulting in 127.5 kg. This leads to a stress value of 12,750 Pa when divided by the contact area of 0.10 m². The discussion highlights confusion regarding the inclusion of the tire ring's mass in the total weight of the car. Overall, the calculation raises questions about the problem's clarity and assumptions.
Reema
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A 500 kg car uses 10 kg aluminum alloy tire ring, what is the compression stress on one of the wheel rings if the contact area is 0.10 m^2 with the tire


so the model answer is
stress = F\A
127.5\0.1 = 12,750 Pa

where did we get the force from ?

127.5 ?
 
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(500 kg + 10 kg) / 4 = 127.50 kg The question as worded doesn't make too much sense.
Apparently, the car has four tires but uses only one tire ring (wheel?) to support itself. I don't know why the mass of the tire ring (rings?) isn't already included in the total mass of the car.
 
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