321_Dynamics 11ed Manual

321_Dynamics 11ed Manual - Find v A2 T , ( ) = T 1.50 lb =...

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Engineering Mechanics - Dynamics Chapter 15 * Problem 15-28 Block A has weight W A and block B has weight W B . If B is moving downward with a velocity v B1 at t = 0, determine the velocity of A when t = t 1 . The coefficient of kinetic friction between the horizontal plane and block A is μ k . Given: W A 10 lb = W B 3lb = v B1 3 ft s = k 0.15 = t 1 1s = g 32.2 ft s 2 = Solution: s A 2 s B + L = v A 2 v B = Guess v A2 1 ft s = T 1lb = Given Block A W A g 2 v B1 Tt 1 + k W A t 1 W A g v A2 = Block B W B g v B1 2 Tt 1 + W B t 1 W B g v A2 2 = v A2 T
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Unformatted text preview: Find v A2 T , ( ) = T 1.50 lb = v A2 6.00 ft s = Problem 15-29 A jet plane having a mass M takes off from an aircraft carrier such that the engine thrust varies as shown by the graph. If the carrier is traveling forward with a speed v , determine the planes airspeed after time t . Units Used: Mg 10 3 kg = kN 10 3 N = 319...
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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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