Question

Block A (Mass is unknown) and Block B (Mass = 3.00 kg) are attached by a massless string as shown in the diagram. Block A sits on a friction- less, horizontal tabletop. The string passes over a frictionless, massless pulley. Block B hangs down vertically as shown. When the two blocks are released, the tension in the string is 24.0 N. The string does not stretch. (d) Suppose that you keep the two blocks the same, but modify the surface so that it is no longer frictionless. As a result when Block B is released it does not move. What is the new tension in the string? A. 29.4 N B. 15.2 N C. 34.1 N D. 18.3 N

          Block A (Mass is unknown) and Block B (Mass = 3.00 kg) are attached by a massless string as shown in the diagram. Block A sits on a friction- less, horizontal tabletop. The string passes over a frictionless, massless pulley. Block B hangs down vertically as shown. When the two blocks are released, the tension in the string is 24.0 N. The string does not stretch. (d) Suppose that you keep the two blocks the same, but modify the surface so that it is no longer frictionless. As a result when Block B is released it does not move. What is the new tension in the string?
A. 29.4 N
B. 15.2 N
C. 34.1 N
D. 18.3 N

Block A (Mass is unknown) and Block B (Mass = 3.00 kg) are attached by a massless string as shown in the diagram. Block A sits on a friction- less, horizontal tabletop. The string passes over a frictionless, massless pulley. Block B hangs down vertically as shown. When the two blocks are released, the tension in the string is 24.0 N. The string does not stretch. (d) Suppose that you keep the two blocks the same, but modify the surface so that it is no longer frictionless. As a result when Block B is released it does not move. What is the new tension in the string?
A. 29.4 N
B. 15.2 N
C. 34.1 N
D. 18.3 N

Added by Jennifer A.

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