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Three Blocks Are Connected by Massless Cords and Rest on a Frictionless

Question 71

Multiple Choice

Three blocks are connected by massless cords and rest on a frictionless horizontal surface. The blocks are pulled to the right. Mass m<sub>1</sub> = 2 m<sub>2</sub> = 3 m<sub>3</sub>, with m<sub>1</sub> on the left and m<sub>3</sub> on the right. If the pulling force is equal to 90 N, then the tension in the cord between m<sub>1</sub> and m<sub>2</sub> is A) 49 N B) 15 N C) 100 N D) 44 N E) 85 N Three blocks are connected by massless cords and rest on a frictionless horizontal surface. The blocks are pulled to the right. Mass m1 = 2 m2 = 3 m3, with m1 on the left and m3 on the right. If the pulling force is equal to 90 N, then the tension in the cord between m1 and m2 is


A) 49 N
B) 15 N
C) 100 N
D) 44 N
E) 85 N

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