At an Instant When a Particle of Mass 50 G

Multiple Choice

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 centre 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