A mass 
is connected by a light string that passes over a pulley of mass M to a mass 
sliding on a frictionless horizontal surface as shown in the figure. There is no slippage between the string and the pulley. The pulley has a radius of 25.0 cm and a moment of inertia of 1?2 
If m1 is 1.00 kg, 
is 2.00 kg, and M is 4.00 kg, then what is the tension in the string attached to 
?
A. 3.92 
B. 3.65
C. 3.23
D. 3.02
E. 2.98
A. 3.92
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