9. Kinematics, Forces, and Energy Two blocks of mass ma and mg are connected through a pulley tension system as seen in the figure on the right. The string is massless and the pulley is massless and frictionless. There is no friction between block A and the ground. Block B starts at a height h above the ground. Both blocks are released from rest. h (a) Use energy to find an expression for the speed of the block just before it hits the floor. (b) Use forces and kinematics to find an expression for the speed of the block just before it hits the floor. (c) Sensemaking: Compare your two answers. How do you know they are right or wrong?

9. Kinematics, Forces, and Energy Two blocks of mass ma and mg are connected through a pulley tension system as seen in the figure on the right. The string is massless and the pulley is massless and frictionless. There is no friction between block A and the ground. Block B starts at a height h above the ground. Both blocks are released from rest. h (a) Use energy to find an expression for the speed of the block just before it hits the floor. (b) Use forces and kinematics to find an expression for the speed of the block just before it hits the floor. (c) Sensemaking: Compare your two answers. How do you know they are right or wrong?

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Description: 9.Kinematics, Forces, and EnergyTwo blocks of mass ma and mg are connectedthrough a pulley tension system as seen in thefigure on the right. The string is massless andthe pulley is massless and frictionless. Thereis no friction between block A and t

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 91AP: At hokey puck of mass 0.17 kg is shot across a rough floor with the roughness different at different...

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