157_Dynamics 11ed Manual

157_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 13 T max 200 lb = W 500 lb = μ s 0.4 = k 0.3 = g 32.2 ft s 2 = θ 30 deg = Solution: Equilibrium : In order to slide the crate, the towing force must overcome static friction. Initial guesses F N 100 lb = T 50 lb = Given T cos () s F N 0 = F N T sin + W 0 = F N T Find F N T , = If T 187.613 lb = > T max 200lb = then the truck will not be able to pull the create without breaking the rope. If T 187.613 lb = < T max = then the truck will be able to pull the create without breaking the rope and we will now calculate the acceleration for this case. Initial guesses
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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