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A Mass M = 2

Question 54

Multiple Choice

A mass m = 2.5 kg is sliding along a frictionless table with initial speed v as shown in the figure. It strikes a coiled spring that has a force constant k = 500 N/m and compresses it a distance x<sub>2</sub> - x<sub>1</sub> = -5.0 cm. The initial speed v of the block was A) 0.71 m/s B) 1.0 m/s C) 1.4 m/s D) 0.50 m/s E) 1.7 m/s A mass m = 2.5 kg is sliding along a frictionless table with initial speed v as shown in the figure. It strikes a coiled spring that has a force constant k = 500 N/m and compresses it a distance x2 - x1 = -5.0 cm. The initial speed v of the block was


A) 0.71 m/s
B) 1.0 m/s
C) 1.4 m/s
D) 0.50 m/s
E) 1.7 m/s

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