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 = P 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

Design bulk materials storage, Q. Design Bulk Materials Storage? Consid...

Q. Design Bulk Materials Storage? Consideration shall be given to providing access to safety showers in areas of hazardous bulk material handling and storage. Where bulk handli

Power sources for arc welding, POWER SOURCES FOR ARC WELDING Electric ...

POWER SOURCES FOR ARC WELDING Electric arc welding processes constitute a majority of all the welding processes. Most of the weldable materials can be joined by arc welding. D

Explain screed unit, Explain the Screed unit The main screed is pivoted...

Explain the Screed unit The main screed is pivoted at the centre point of the machine to assure a constant flatness of work on uneven grounds. It consists of 2440 mm main scree

Composite Materials, One can increase the toughness of a ceramic material b...

One can increase the toughness of a ceramic material by introducing fibers to the structure of the ceramic and create a ceramic-matrix composite. However, unlike other fiber-reinfo

Find the minimum weight to keep equilibrium, Find the minimum weight to kee...

Find the minimum weight to keep equilibrium: A belt supports the two weights W 1 an d W 2 over a pulley as shown in the figure given below. If W 1 = 1000N, fi

Explan the drive or traction unit, Explan the Drive or traction unit   ...

Explan the Drive or traction unit   Hydrostatic drive is provided for traction with a two speed gear-box. High speed is for travelling and low speed for working. Speed is in

Position of centre of gravity of the frustrum of a cone, Position of centre...

Position of centre of gravity of the frustrum of a cone: situate the position of C. G. of the frustrum of a cone with height H = 12 cm and with  diameter 8 cm and 12 cm at top

Torsional Vibration, Free Torsional Vibration of a Single Rotor System

Free Torsional Vibration of a Single Rotor System

Determine time required to stop the automobile, Determine time required to ...

Determine time required to stop the automobile: A 20KN automobile is moving at speed of 70Kmph when brakes are fully applied causing all the four wheels to skid. Determine ti

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