313_Dynamics 11ed Manual

313_Dynamics 11ed Manual - force F acting on the tugboat....

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Engineering Mechanics - Dynamics Chapter 15 Given: W 4lb = v 0 10 ft s = a 20 lb = g 32.2 ft s 2 = b 1 s = θ 20 deg = c 1 = Solution: Guess t 10 s = Given W g v 0 0 t τ ab c + () d + W sin () t 0 = t Find t () = t 0.069256619 s = * Problem 15-16 If it takes time t 1 for the tugboat of mass m t to increase its speed uniformly to v 1 starting from rest, determine the force of the rope on the tugboat. The propeller provides the propulsion force F which gives the tugboat forward motion, whereas the barge moves freely. Also, determine the
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Unformatted text preview: force F acting on the tugboat. The barge has mass of m b . Units Used: Mg 1000 kg = kN 10 3 N = Given: t 1 35 s = m t 50 Mg = v 1 25 km hr = m b 75 Mg = Solution: The barge alone T t 1 + m b v 1 = T m b v 1 t 1 = T 14.88 kN = The barge and the tug F t 1 + m t m b + ( ) v 1 = F m t m b + ( ) v 1 t 1 = F 24.80 kN = 311...
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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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