Two blocks A (Wa=12 N) and B (We=20 N) are connected by very light string that passes over a frictionless pulley (as shown in Figure). Block B rest on top of a horizontal tabletop and has a coefficient of kinetic friction against between of 0.15. Block A is suspended on the other end and it doesnot hit the edge of the tabletop. When the system is released from rest, block A descends to 75 cm. 20 N 12 N a) What is the total work done on the system? b) Using work-energy theorem, what is the speed of each blocks as block A descends to 75 cm?

Two blocks A (Wa=12 N) and B (We=20 N) are connected by very light string that passes over a frictionless pulley (as shown in Figure). Block B rest on top of a horizontal tabletop and has a coefficient of kinetic friction against between of 0.15. Block A is suspended on the other end and it doesnot hit the edge of the tabletop. When the system is released from rest, block A descends to 75 cm. 20 N 12 N a) What is the total work done on the system? b) Using work-energy theorem, what is the speed of each blocks as block A descends to 75 cm?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 9.1CYU: Check Your Understanding The U.S. Air Force uses “10gs” (an acceleration equal to 109.8m/s2 ) as the...

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