FIGURE 6-12 -Two Masses Are Connected by a String Which Goes Over

Multiple Choice

FIGURE 6-12
-Two masses are connected by a string which goes over an ideal pulley as shown in Figure 6-12. Block A has a mass of 3.0 kg and can slide along a smooth plane inclined 30° to the horizontal. What is the mass of block B if the system is in equilibrium?

A) 1.5 kg
B) 3.0 kg
C) 2.6 kg
D) 3.5 kg
E) 6.0 kg