Skip to main content
HomeMATHalinoEngineering Math Review
  • Home
    • Recent
    • Glossary
    • About
  • Algebra
    • Derivation of Formulas
    • Engineering Economy
    • General Engineering
  • Trigo
    • Spherical Trigonometry
  • Geometry
    • Solid Geometry
    • Analytic Geometry
  • Calculus
    • Integral Calculus
    • Differential Equations
    • Advance Engineering Mathematics
  • Mechanics
    • Strength of Materials
    • Structural Analysis
  • CE
    • CE Board: Math
    • CE Board: Hydro Geo
    • CE Board: Design
    • Surveying
    • Hydraulics
    • Timber Design
    • Reinforced Concrete
    • Geotechnical Engineering
  • Courses
    • Exams
    • Old MCQ
  • Forums
    • Basic Engineering Math
    • Calculus
    • Mechanics
    • General Discussions
  • Blogs

Breadcrumbs

You are here:

  1. Home
  2. ring

ring

011 Resultant of three forces acting in a ring

Problem 011
Three ropes are tied to a small metal ring. At the end of each rope three students are pulling, each trying to move the ring in their direction. If we look down from above, the forces and directions they are applying are shown in Fig. P-011. Find the net force on the ring due to the three applied forces.
 

Three forces acting in a ring

 

  • Read more about 011 Resultant of three forces acting in a ring
  • Log in to post comments

Solution to Problem 140 Pressure Vessel

Problem 140
At what angular velocity will the stress of the rotating steel ring equal 150 MPa if its mean radius is 220 mm? The density of steel 7.85 Mg/m3.
 

Solution 140
140-fbd-rotating-ring.gif$CF = M \omega^2 \bar x$
 

Where:
$M = \rho V = \rho A \pi R$

$x = 2R / \pi$

 

Thus,
$CF = \rho A \pi R \omega^2 (2R / \pi)$

  • Read more about Solution to Problem 140 Pressure Vessel
  • Log in to post comments

Solution to Problem 139 Pressure Vessel

Problem 139
Find the limiting peripheral velocity of a rotating steel ring if the allowable stress is 20 ksi and steel weighs 490 lb/ft3. At what revolutions per minute (rpm) will the stress reach 30 ksi if the mean radius is 10 in.?
 

  • Read more about Solution to Problem 139 Pressure Vessel
  • Log in to post comments
Home • Forums • Blogs • Glossary • Recent
About • Contact us • Terms of Use • Privacy Policy • Hosted by Linode • Powered by Drupal
MATHalino - Engineering Mathematics • Copyright 2025 Jhun Vert • All rights reserved