HW1_Soln_F10

HW1_Soln_F10 - + + 2 1 2 1 2 4 2 4 SOLUTION SOLUTION 2. A...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
SOLUTION SOLUTION ECE 455/555: Mechanics of Engineering Systems Fall 2010 HOMEWORK #1 1. A uniform beam of mass M and length r has weights W 1 and W 2 at two positions, as illustrated below. Find the position x such that the normal force at O will be 2 1 W . Sum Forces in y Direction p o b N N W W W + = + + 2 1 W 2 N o y W 1 N p x W b W 1 W 2 O P r x r/2 d r/4
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
SOLUTION SOLUTION Sum Moments about O () () 0 4 1 2 = d N r W x W p From the summation of forces, b p p b o W W W N N W W W W W N + + = + = + + = 2 1 1 2 1 1 2 2 2 Using this result in the summation of torques, () () () () 0 2 4 2 1 1 2 = d W d W d W r W x W b () d W d W d r W x d W d x W d r W b b + + + = =
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: + + 2 1 2 1 2 4 2 4 SOLUTION SOLUTION 2. A uniform beam of length 5 m and mass of 25 kg supports a 200 kg mass as shown below. Determine the tension in the supporting cable connected to the wall. N T solving T N W N W ball beam 25 1041 30 245 5 2 30 1960 5 5 1960 8 9 200 245 8 9 25 . : ) sin( ) )( . ( ) sin( ) )( ( ) . ( ) . ( = = = = = = 60 o W beam T R 30 o x y W ball 30 o 60 o...
View Full Document

Page1 / 3

HW1_Soln_F10 - + + 2 1 2 1 2 4 2 4 SOLUTION SOLUTION 2. A...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online