If mass A is 2.5 kg mass B is 3.5 kg and the frictionless pulley has a mass of 3.0 kg and a radius of 0.20 m, what is the velocity of A and B at 0.5 seconds?
A. a= 1.20 m/s , b=0.82 m/s
B. a= -0.82 m/s, b= 0.82 m/s
C. a= -0.82, m/s, b= 1.20 m/s
D. A= 0.82m/s, b= 0.82 m/s
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