H8 Cyndi and Gerome, both gnomes, prepare for a party on Friday. They want to ha
ID: 1551844 • Letter: H
Question
H8 Cyndi and Gerome, both gnomes, prepare for a party on Friday. They want to hang decorations, but are forced to use books to keep them in place. Find the tension in the three ropes. What minimum weight of books is needed in the stack? A Chandelier is tied up by two ropes. Find the tension in the ropes. b) The rape on the right is cut. What is the magnitude of the acceleration of the chandelier immediately after the rope is cut? A box of apples, m_1, is pulled by a box of paper clips, m_2. Given m_1 = 2.4kg, m_2 = 3.6kg, there is no friction between m_1 and the track (mu_s = mu_k = 0). What is the acceleration of the system. A similar system is initially at rest. Now there is friction. Will the system start moving? If so, find the acceleration of the system. If not, find the frictional force on m_1. a) Given m_1g = 14N, m_2g = 3.0N, mu_s = 0.4, mu_s = 0.25. b) Given m_1g = 20N, m_2g = 14N, mu_s = 0.6, mu_k = 0.5.Explanation / Answer
b) m2a = m2g-T
T = m2g-m2a
m1a = T-f
m1a = m2g-m2a-f
a(m1+m2) = m2g-mue*m1g)
a = g(m2-muek*m1)/m1+m2)
a = (14-5)/(2.04+1.43) = 3.64
b)T = m2g
T = fs
fs = m2g = 3 N
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