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

Explain single piece pattern, Single piece pattern These are inexpensiv...

Single piece pattern These are inexpensive and the simplest type of patterns. As the name indicates, they are made of a single piece as shown in Figure.2.2 this type of pattern

Electrical technology, Hi there could I please get a quote for the attached...

Hi there could I please get a quote for the attached Electrical assignment please. Particular attention needs to be taken in terms of the instructions

Drawing, for drawing large size circles diameter greter than 150mm what is...

for drawing large size circles diameter greter than 150mm what is attached to compass? \

Determine lifting load of crane, Navy divers are called to rescue a group o...

Navy divers are called to rescue a group of office workers trapped in a basement under floodwater in Leeds, UK. The only access to the basement is via a 1.5 x 1.5 m horizontal hatc

Klein''s construction, what is the velocity and acceleration when connectin...

what is the velocity and acceleration when connecting rod and crank are mutually perpendicular?

Wrought al alloys, Wrought Al Alloys This aluminium alloys are acquir...

Wrought Al Alloys This aluminium alloys are acquired by addition of Mn and Mg. The Al-Mn and Al-Mg alloys cannot be heat treated. Al-Mn alloy combines high ductility along wi

Determine the resultant of the system of forces, Determine the resultant of...

Determine the resultant of the system of forces: Four forces act on a body as illustrated in Figure. Determine the resultant of the system of forces. Figure Sol

What is boiler feedwater, Q. What is Boiler feedwater? The boiler feedw...

Q. What is Boiler feedwater? The boiler feedwater will be a mixture of desalinated water, treated make-up water and returned condensate, deaerated and heated, supplied by other

Influence lines for the force, Solve the following two questions of the tru...

Solve the following two questions of the truss. Note that A and G are pin supports.  1)  Sketch the influence lines for the force in bar DG (the load is moving on the top chord

Calculate the cutting speed in drilling operation, Calculate the Cutting Sp...

Calculate the Cutting Speed in Drilling Operation Calculate the cutting speed if a drill of 0.04 m dia is operated at a speed of 250 rpm. Solution D = 0.04 m N = 25

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