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Ilmu Alam => Fisika => Topik dimulai oleh: Fachni Rosyadi pada November 06, 2011, 11:51:57 PM

Judul: Moving a house
Ditulis oleh: Fachni Rosyadi pada November 06, 2011, 11:51:57 PM
Suppose you were planning to move a house by tansporting it on a large trailer. The house has an estimated wight of 45.6 tons (1\ \text{ton}=2000\ \text{lb}). The trailer is expected to weigh 8.3 tons. Each wheel of the trailer will have tires inflated to a gauge pressure of 85 psi (which is actually 85 psi above atmospheric pressure). If the area of contact between a tire and the pavement can be no larger than 100\ \text{in}^2 (10\ \text{in} \times 10\ \text{in}), what is the minimum number of wheels the trailer must have? (Remember, tires are mounted in multiples of two on a trailer. Assume that atmospheric pressure is 14.7 psi).

(Brady, 430/10/83)
Judul: Re: Moving a house
Ditulis oleh: syx pada November 07, 2011, 07:18:05 AM
ini bukannya fisika ya?