Magnitude and direction of force, Mechanical Engineering

Assignment Help:

Magnitude and direction of force:

Determine magnitude and direction of smallest force P which is required to start the wheel over the block. As shown in the figure.

Sol.: Let the reaction of block be R. The least force P is always perpendicular in reaction R. When the wheel is just on point of movement up, then it loose contact with the inclined plane and reaction at this point becomes zero.

 

1193_magnitude and direction of smallest force.png

Consider ?OMP

OM = 60cm

OP = 60-15 = 45cm

MP = {(OM)2 - (OP)2}1/2

544_magnitude and direction of smallest force1.png

= {3600 - 2025}1/2

= 39.68cm

tan     = MP/OP = 39.68/45,           = 41.400

Using lamis theorem at O

P/sin108.6° = 10/sin90° = R/sin161.4°

P = (10 × sin108.6°)/sin90° =9.4KN Thus smallest force P = 9.4KN


Related Discussions:- Magnitude and direction of force

Explain about structural design of combined footing, Explain about structur...

Explain about structural design of combined footing. Structural Design of Combined Footing The rectangular and trapezoidal combined footings are designed assuming uniform so

Define the term miller indices, Define the term Miller Indices. Miller ...

Define the term Miller Indices. Miller Indices are a process of explaining the orientation of a plane or set of planes into a lattice within relation to the unit cell. They wer

Corrosion control in oil-treating equipment, Q. Corrosion Control in Oil-Tr...

Q. Corrosion Control in Oil-Treating Equipment? Bitumen provides adequate internal protection for Inlet Slug Catcher, FWKO and Treater. Due to high operating temperature, inter

Heat transfer and temperature distribution, Derive the mathematical express...

Derive the mathematical expression for heat transfer and temperature distribution through infinite long fin?

How pipe flanges are electrically insulated, Pipe flanges are protected fro...

Pipe flanges are protected from corrosion by means of electrolysis, with dielectric flanges. The piping system is electrically insulated by what is known as a sacrificial anode. A

Concept and application of limiting friction, Concept and application of li...

Concept and application of limiting friction: Sol.: The maximum value of frictional force that comes into play, when the body just begins to slide over the surface of the ot

Turnning fixtures, What are the forces coming on workpiece during turning a...

What are the forces coming on workpiece during turning and how workpiece should be clamp?

Section modulus, Section modulus: Define the Section modulus. What d...

Section modulus: Define the Section modulus. What do you mean by torsional section modulus or polar modulus?  The moment of inertia of plane about the axis perpendicula

I.c.engine, compression ignition engine fore stork with neat daysgram

compression ignition engine fore stork with neat daysgram

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd