FIGURE 5-6
-Two masses are connected by a string which goes over an ideal pulley as shown in Fig. 5-6. Block A has a mass of 3.00 kg and can slide along a rough plane inclined 30.0° to the horizontal. The coefficient of kinetic friction between block A and the plane is 0.400. Block B has a mass of 2.77 kg. What is the acceleration of the blocks?

Question

FIGURE 5-6

-Two masses are connected by a string which goes over an ideal pulley as shown in Fig. 5-6. Block A has a mass of 3.00 kg and can slide along a rough plane inclined 30.0° to the horizontal. The coefficient of kinetic friction between block A and the plane is 0.400. Block B has a mass of 2.77 kg. What is the acceleration of the blocks?

Quizplus · Accepted Answer

The net force on the system is the difference between the gravitational component pulling block A down the incline and the gravitational force pulling block B down. The frictional force on block A also opposes its motion. Solving the equations of motion for the system gives an acceleration of approximately 0.392 m/s².

FIGURE 5-6 -Two Masses Are Connected by a String Which Goes Over