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A person who weighs 877 N is riding a 93-N mountain bike. Suppose the entire wei

ID: 1786528 • Letter: A

Question

A person who weighs 877 N is riding a 93-N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 8.40 x 105 Pa, what is the area of contact between each tire and the ground? A person who weighs 877 N is riding a 93-N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 8.40 x 105 Pa, what is the area of contact between each tire and the ground?

Explanation / Answer

Reaction force on each tire = 0.5*(Mg+mg) = 0.5*(877+93) = 485 N

We know that,

Area = Force/pressure = 485/[8.4e5]

= 0.000577 m^2 answer

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