Evaluate the angle - block impends down the plane, Mechanical Engineering

Evaluate the angle - block impends down the plane:

What should be value of the angle shown in the figure so that the motion of the 90N block impends down the plane? The coefficient of friction for entire surface = 1/3.

1329_Evaluate the angle - block impends down the plane.png

Sol.: Consider equilibrium of block 30N             

∑V = 0;                                                                      1403_Evaluate the angle - block impends down the plane1.png

R1  - 30cos θ  = 0,

R1 = 30cos                                 ...(i)

∑H = 0;

T - µR1 - 30sinθ   = 0,

T = 10cos θ  + 30sinθ           ...(ii)

Consider the equilibrium of block 90N

∑V = 0;

R2  - R1  - 90cos θ  = 0

R2 = 120cos                             ...(iii)

∑H = 0;

90sin θ  - µR1 - µR2 = 0,

90sin θ  = 10cos θ  + 40sinθ         ...(vi)

tanθ = 5/9 that is  θ = 29.050


Posted Date: 10/18/2012 2:24:50 AM | Location : United States

Related Discussions:- Evaluate the angle - block impends down the plane, Assignment Help, Ask Question on Evaluate the angle - block impends down the plane, Get Answer, Expert's Help, Evaluate the angle - block impends down the plane Discussions

Write discussion on Evaluate the angle - block impends down the plane
Your posts are moderated
Related Questions
Q. Handling tools and equipment for skid? Lifting or pulling and provisions for transportation of skid shall be in accordance with GS-904-0103, other relevant parts of contract

PLASMA WELDING This is an extension of TIG welding. In plasma welding torch, plasma energy is constricated and ensures its most efficient utilisation for welding cutting and s

Question 1: A good display of the merchandise is the result of planning, cooperation and coordinating. A good schedule of work is important for a good design with the use of me

develop an appropriate group technology coding scheme for a line of machine screws using monocode. explain how the coding scheme works. Assume the product line has the following va

CAD-CAM Data Exchange: The interface SET transferred information on wire-frames, surfaces, B-representation and FEM models as well as technical drawings and scientific data. I

Find out the magnitude of the force to keep equilibrium: Th e lever ABC of a component of machine is hinged at point B , and is subjected to a system of coplanar forces.

Diffrence between external diameter and internal diameter: A compound tube is built by shrinking one tube on another, the ultimate dimension being, 80 mm internal diameter, 16

This lab sheet is designed to guide students through the experimentation they will need to conduct in order to complete the continual assessment element of their NG3H235 studies.Th

The different advantages of alloy steel are as: (a) Higher strength, toughness and hardness upon surface and over bigger cross-section. (b) Better harden-ability and retentio

An inside cylinder locomotive has its cylinder centre lines 0.70m apart and has a stroke of 0.60m. Rotating mass per cylinder = 150kg Distance between wheel Centre lines = 1.