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?
1) 60 m/s2
2) 56 m/s2
3) 40 m/s2
4) 50 m/s2
5) 46 m/s2
Answer: 3