At an instant when a particle of mass 50 g has an acceleration of 80 m/s2 in the positive x direction, a 75-g particle has an acceleration of 40 m/s2 in the positive y direction. What is the magnitude of the acceleration of the center of mass of this two-particle system at this instant?
A. 60 m/s2
B. 56 m/s2
C. 40 m/s2
D. 50 m/s2
E. 46 m/s2
Answer: C
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