Evaluate force to slide the body over the surface, Mechanical Engineering

Assignment Help:

Evaluate Force to slide the body over the surface:

A body having weight 100N rests on rough horizontal surface (µ = 0.3) and is acted upon by a force applied at an angle of 300 to the horizontal. What force is required to just make the body to slide over the surface?

Sol.: In limiting equilibrium, the forces are balanced.

 

388_Evaluate Force to slide the body over the surface.png

∑H = 0;

F = cosθ

∑V = 0;

R = W - Psinθ

Also                        F = µR

P.cos θ  = µ(W- P.sinθ  )

P.cosθ   = µ.W- µ.P.sinθ

µ.P.sinθ  + P.cosθ   = µ.W

P(µ.sinθ    + cos θ ) = µ.W

P = µ.W/(Cosθ   + µ.sinθ )

= 0.3× 100 / (Cos30° + 0.3sin30°)

= 29.53N                                                  .......Ans


Related Discussions:- Evaluate force to slide the body over the surface

Determine the heat transfer coefficient, The average heat transfer co effic...

The average heat transfer co efficient for flow of 100 o C air over a flat plate is calculated by observing the temperature time history of a 3mm thick copper slab exposed 100 o

Study and design of pattern, TO Study And Design Of Pattern A pattern i...

TO Study And Design Of Pattern A pattern is an element used for making cavities in the mould, into which molten metal is poured to produce a casting. It is not an exact replica

Orthographic projections, Orthographic Projections: As you learned pre...

Orthographic Projections: As you learned previously about the theory of projection of points, planes and lines, the next significant is the projection of solids that have thre

Theory of machine, Kleines contruction for slider mechanism

Kleines contruction for slider mechanism

Find out m.i. of t section, Q. Find out M.I. of T section as shown in figur...

Q. Find out M.I. of T section as shown in figure given below about X - X and Y - Y axis through center of gravity of the section.   Figure Sol.:

Main features of laser cutting process, Main Features of Laser Cutting Proc...

Main Features of Laser Cutting Process   1) Laser cut kerf is very narrow resulting in material saving. 2) Has very narrow heat affected zone (HAZ) and therefore gives low

State the planning the foundation for reciprocating engines, State the Plan...

State the Planning the foundation for reciprocating engines i)  The eccentricity of  the common centre of gravity of machine and foundation referred to the centroid of base are

Describe cope and drag pattern, Cope and drag pattern These are similar...

Cope and drag pattern These are similar to split patterns. In addition to splitting the pattern, the cope and drag halves of the patterns along with the gating and risering sys

Effects of air resistance. , Traveling at a speed of 16.0 m/s, the driver o...

Traveling at a speed of 16.0 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the roa

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