jahairavargas2or5y8w jahairavargas2or5y8w 22-10-2019 Physics contestada If Rojelio starts out at rest, and in 10 s speeds up to 50 m/s, what is his acceleration? A - 12 m/s^2 B - 8 m/s^2 C - 5 m/s^2 D - 15 m/s^2