55. A 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts in Figure P8.55. A 20 kg boy starts walking along the beam. How close can he 3.0 m get to the right end of the FIGURE P8.55 beam without it tipping?

55. A 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts in Figure P8.55. A 20 kg boy starts walking along the beam. How close can he 3.0 m get to the right end of the FIGURE P8.55 beam without it tipping?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 7P: A bicyclist starting at rest produces a constant angular acceleration of 1.60 rad/s2 for wheels that...

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

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Help drawing forces on the image and solving.

55. A 40 kg, 5.0-m-long
beam is supported by, but
not attached to, the two
posts in Figure P8.55. A 20
kg boy starts walking along
the beam. How close can he
get to the right end of the
beam without it tipping?
3.0 m
FIGURE P8.55
stant

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