7. Friction, Inclines, Systems
Systems of Objects on Inclined Planes with Friction
9:59 minutes
Problem 5.29a
Textbook Question
Textbook Question(II) Two blocks made of different materials connected together by a thin cord slide down a ramp inclined at an angle θ to the horizontal, Fig. 5–40 (block B is above block A). The masses of the blocks are m_A and m_B, and the coefficients of friction are μ_A and μ_B . If m_A = m_B=4.0kg, and μ_A = 0.20 and μ_B = 0.30, determine
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(a) the acceleration of the blocks and
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