The closure is manufactured by the LCN Company and is used to control the restricted motion of
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The closure is manufactured by the LCN Company and is used to control the restricted motion of a heavy door. If the door to which is it connected has an angular acceleration α, determine the angular accelerations of links BC and CD. Originally the door is not rotating but is hinged at A.
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Given: r1 2.5 in r2 = 6 in = 4 in 14 = 12 in r3 = α = 3 rad 2 8 = 60 deg D B C
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