7. 2) The lawn roller has a mass m = 60 kg and a radius of gyration about its gravitational center G, kG = 191 mm. It has a handle that connects to its center axle, and the handle is pushed forward with a force F= 437 N at a 45° angle. The coefficients of static and kinetic friction between the roller and the ground are us = 0.11 and uk = 0.07, respectively. For the sets of parameters listed below, determine the magnitude of the roller's angular acceleration (in rad/s2). Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s².

7. 2) The lawn roller has a mass m = 60 kg and a radius of gyration about its gravitational center G, kG = 191 mm. It has a handle that connects to its center axle, and the handle is pushed forward with a force F= 437 N at a 45° angle. The coefficients of static and kinetic friction between the roller and the ground are us = 0.11 and uk = 0.07, respectively. For the sets of parameters listed below, determine the magnitude of the roller's angular acceleration (in rad/s2). Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s².

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.57P: The square-threaded screw with a pitch of 10 mm and a mean radius of 18 mm drives a gear that has a...

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