3. Auniform beam of length L and mass Mhas its lower end pivoted at P on the floor, making an angle 0 with the floor. A horizontal cable is attached at its upper end at point B to a pont A on a wall. A box of mass M is suspended from a rope that is attached to the beam L/4 from its upper end. Find the (a) tension T n the cable and the (b) X- and y-components of the force P exerted by the beam pivot the . [Answer: (a) T = on 5/4 Mg cot 0, (b) P, = T and P,= 2Mg].

3. Auniform beam of length L and mass Mhas its lower end pivoted at P on the floor, making an angle 0 with the floor. A horizontal cable is attached at its upper end at point B to a pont A on a wall. A box of mass M is suspended from a rope that is attached to the beam L/4 from its upper end. Find the (a) tension T n the cable and the (b) X- and y-components of the force P exerted by the beam pivot the . [Answer: (a) T = on 5/4 Mg cot 0, (b) P, = T and P,= 2Mg].

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 38P: A uniform horizontal strut weighs 400.0 N. One end of the strut is attached to a hinged support the...

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