Problem Solving 1: Beams and SupportsA uniform 1500-kg beam, 20.0 m long, supports a 15,000-kg printing press 5.0 m from theright support column. Calculate the force on each of the vertical support columns.FAFBP(1500 kg)g10.0 m -5.0 m--5.0 m-(15,000 kg)gCOLLEGE OF SCIENCEQ2 General Physics 1: 01 Rotational Motion45POLYTECHNIC UNIVERSITY OF THE PHILIPPINESProblem Solving 2: CantileverThe figure shows a uniform beam (m = 1200 kg)that extends beyond its support like a divingboard. Such a beam is called a cantilever. Theforces acting on the beam are those due to thesupports, and the force of gravity which acts atthe CG, 5.0 m to the right of the right-handsupport. Calculate FA and FB.FB-20.0 m30.0 mCGBmg

Taking moment about P 1500g×10+15000g×15=FB×20FB=1500+1500×152g=1500×8×9.8=117600 N

A uniform 1500-kg beam, 20.0 m long, supports a 15,000-kg printing press 5.0 m from the right support column. Calculate the force on each of the vertical support columns. CG (1500 kg)g +5.0 m-5.0 m- -10.0 m- (15,000 kg)g

A uniform 1500-kg beam, 20.0 m long, supports a 15,000-kg printing press 5.0 m from the right support column. Calculate the force on each of the vertical support columns. CG (1500 kg)g +5.0 m-5.0 m- -10.0 m- (15,000 kg)g

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section8.2: Rotational Dynamics

Problem 13PP

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Concept explainers

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.

Question

Problem Solving 1: Beams and Supports
A uniform 1500-kg beam, 20.0 m long, supports a 15,000-kg printing press 5.0 m from the
right support column. Calculate the force on each of the vertical support columns.
FA
FB
P
(1500 kg)g
10.0 m -5.0 m--5.0 m-
(15,000 kg)g
COLLEGE OF SCIENCE
Q2 General Physics 1: 01 Rotational Motion
45
POLYTECHNIC UNIVERSITY OF THE PHILIPPINES
Problem Solving 2: Cantilever
The figure shows a uniform beam (m = 1200 kg)
that extends beyond its support like a diving
board. Such a beam is called a cantilever. The
forces acting on the beam are those due to the
supports, and the force of gravity which acts at
the CG, 5.0 m to the right of the right-hand
support. Calculate FA and FB.
FB
-20.0 m
30.0 m
CG
B
mg

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