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A Mass M2 = 1

Question 32

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A mass m2 = 1.5 kg rests on a horizontal table.The coefficients of friction between m2 and the table are µs = 0.3 and µk = 0.25.The mass m2 is attached by strings to masses m1 = 2.5 kg and m3 = 4.5 kg as shown.Masses m1 and m3 hang freely.The system is initially held at rest.After it is released,the acceleration of m2 is approximately A mass m<sub>2</sub> = 1.5 kg rests on a horizontal table.The coefficients of friction between m<sub>2</sub> and the table are µ<sub>s</sub> = 0.3 and µ<sub>k</sub> = 0.25.The mass m<sub>2</sub> is attached by strings to masses m<sub>1</sub> = 2.5 kg and m<sub>3</sub> = 4.5 kg as shown.Masses m<sub>1</sub> and m<sub>3</sub> hang freely.The system is initially held at rest.After it is released,the acceleration of m<sub>2</sub> is approximately A) 1.9 m/s<sup>2 </sup> B) 2.4 m/s<sup>2 </sup> C) 3.0 m/s<sup>2 </sup> D) zero E) 13 m/s<sup>2 </sup>


A) 1.9 m/s2
B) 2.4 m/s2
C) 3.0 m/s2
D) zero
E) 13 m/s2

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