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Block A, with mass mA= 1.5kg, is on a horizontal table connected to an ideal string, which goes over an ideal pulley connected to another block, block B, as shown in Figure 2. There is a coefficient of static friction of μs= 0.65, and a coefficient of kinetic friction of μk= 0.25 between block A and the tabletop. a)Draw a free body diagram for block A. b)Draw a free body diagram for blockB. c)Write Newton’s 2nd law for block A in terms of mA, T, g, and Fn. d)Write Newton’s 2ndlaw for block B in terms of mB, T, and g. c)What is the minimum necessary mass for block B(mB) needed to start block A moving?

Block A, with mass mA= 1.5kg, is on a horizontal table connected to an ideal string, which goes over an ideal pulley connected to another block, block B, as shown in Figure 2. There is a coefficient of static friction of μs= 0.65, and a coefficient of kinetic friction of μk= 0.25 between block A and the tabletop. a)Draw a free body diagram for block A. b)Draw a free body diagram for blockB. c)Write Newton’s 2nd law for block A in terms of mA, T, g, and Fn. d)Write Newton’s 2ndlaw for block B in terms of mB, T, and g. c)What is the minimum necessary mass for block B(mB) needed to start block A moving?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Block A, with mass mA= 1.5kg, is on a horizontal table connected to an ideal string, which goes over an ideal pulley connected to another block, block B, as shown in Figure 2. There is a coefficient of static friction of μs= 0.65, and a coefficient of kinetic friction of μk= 0.25 between block A and the tabletop.

a)Draw a free body diagram for block A.

b)Draw a free body diagram for blockB.

c)Write Newton’s 2nd law for block A in terms of mA, T, g, and Fn.

d)Write Newton’s 2ndlaw for block B in terms of mB, T, and g.

c)What is the minimum necessary mass for block B(mB) needed to start block A moving?

The image shows a physics problem involving two blocks, A and B, connected by a rope over a pulley system. ### Diagram Description - **Block A** (mass \( m_A = 1.5 \, \text{kg} \)) is placed on a horizontal table surface. - **Block B** is suspended vertically, hanging over the edge of the table. - A rope connects Block A and Block B, passing over a pulley. - The pulley is depicted as a black circle. ### Explanation of Forces and Motion - The system depicts Block B pulling Block A across the table, implying motion due to gravity acting on Block B. - The friction between Block A and the table, with a coefficient of kinetic friction \( \mu_k = 0.25 \), resists this motion. - The pulley's effect is to change the direction of the tension in the rope, allowing the weights to interact. **Figure 2: Block A being pulled by block B.** ### Additional Text The scenario described involves the interaction of gravitational force on Block B and frictional force opposing the movement of Block A across the table. This is a common setup for analyzing Newton's laws of motion, frictional forces, and tension in connected bodies.
Transcribed Image Text:The image shows a physics problem involving two blocks, A and B, connected by a rope over a pulley system. ### Diagram Description - **Block A** (mass \( m_A = 1.5 \, \text{kg} \)) is placed on a horizontal table surface. - **Block B** is suspended vertically, hanging over the edge of the table. - A rope connects Block A and Block B, passing over a pulley. - The pulley is depicted as a black circle. ### Explanation of Forces and Motion - The system depicts Block B pulling Block A across the table, implying motion due to gravity acting on Block B. - The friction between Block A and the table, with a coefficient of kinetic friction \( \mu_k = 0.25 \), resists this motion. - The pulley's effect is to change the direction of the tension in the rope, allowing the weights to interact. **Figure 2: Block A being pulled by block B.** ### Additional Text The scenario described involves the interaction of gravitational force on Block B and frictional force opposing the movement of Block A across the table. This is a common setup for analyzing Newton's laws of motion, frictional forces, and tension in connected bodies.
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