System of parallel forces - mechanics, Mechanical Engineering

Assignment Help:

System of parallel forces:

A rigid body is subjected to system of parallel forces as shown in the figure. Reduce this system to,

(i) A single force system

(ii) A single force moment system at point B

 

Sol.: It is equivalent force system

1452_System of parallel forces.png

(Acting downward)

R = 15 - 60 + 10 -25 = -60 N

Now taking moment about A, apply varignon's theorem

R.X = 60 × 0.4 - 10 × 0.7 + 25 × 1.4

60.X = 52, × = 0.867 m Where X is distance of resultant from point A.
(1) A single force be 60 N which is acting downward

(2) Now a force of 60 N = A force of 60 N (down) at point B

and anticlockwise moment of 60 × (1.4 - 0.866) = 31.98 Nm at B.

60 N force and 31.98 Nm moment anticlockwise                                                         .......ANS

 


Related Discussions:- System of parallel forces - mechanics

Example of shear force and bending moment diagram, Example of Shear force a...

Example of Shear force and bending moment diagram: Q: Draw the Shear Force and bending moment diagram for the simply supported beam loaded as shown in the figure given belo

Find out the reactions at point, Find out the reactions at point: A be...

Find out the reactions at point: A beam AB is hinged at A and is supported at C. It is loaded as revealed in Figure. Find out the reactions at A and C. Solution L

Calculate the average heat transfer coefficient, Air at 1 atm, 300K, and Re...

Air at 1 atm, 300K, and Re = 50,000: a. Flow across the cylinder with a diameter of 10 cm. b. Flow inside a tube with a diameter of 10 cm. c. flow along the flat plate of

Determine hardness of material, Determine hardness of material: Hardne...

Determine hardness of material: Hardness is surface property. It can be defined as resistance of material against permanent deformation of surface in the form of scratch, inde

Slab hanging - mechanics, Slab hanging: Three similar uniform slabs ...

Slab hanging: Three similar uniform slabs each having length '2 a ' are resting on edge of table as shown in the figure given below. If each slab is overhung by the maximum

Write the differences between reaction and impulse turbine, (a) Show that t...

(a) Show that the force exerted by a jet of water on an inclined fixed plate in the dissection of jet is given by fx = .a.v 2 . sin 2 θ. Where a is area of jet, v is velocity of j

Determine the change in pressure rise through the compressor, We have a rec...

We have a reciprocating compressor operating at 800 rpm.  Suction pressure and discharge pressure are held constant by other systems that have nothing to do with the compressor.  W

Explain the construction and working of a differential, (a) What are the di...

(a) What are the different types of clutches used in modern automobiles? With the help of neat and clean diagram describe the functioning of a diaphragmspring clutch. (b) Explai

What are the several factors affecting tool life, (a) Draw a single point c...

(a) Draw a single point cutting tool and label clearly the several parts of it. Illustrate them in brief. (b) What are the several factors affecting tool life ? (c) List char

Mechanical properties of high temperature strength of metals, Q. Mechanical...

Q. Mechanical Properties of high temperature strength of metals? The high temperature strength of metals is related to their melting points, but many other factors limit the pr

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