Find the value of force to move a system, Mechanical Engineering

Find the value of force to move a system:

The system of particles shown in the figure given below is initially at rest. Find the value of force F which should be applied so that system acquires velocity of 6m/sec after moving 5m.

Sol: Given,

Initial velocity u = 0

Final velocity v = 6m/sec

Distance traveled s = 5m

For finding acceleration, use relation, v2  = 42  + 2as

a = 3.6 m/sec2  62  = 0 + 2a X 5                                                                                     ... (i)

Apply relation F = ma,

 

2259_Find the value of force to move a system.png

 

Let T = Tension in string, same for both side

Using relation F = ma, for block A T - 100 = ma

T - 100 = (100/9.81) X 3.6                                                                                                             ...(ii)

Using relation F = ma, for block B

100 + F - T = ma

100 + F - T = (100/9.81) X 3.6                                                                                                            ...(iii)

Add equation (2) and (3), we get

F = 2[(100/9.81) X 3.6]

F = 73.5N                                                                          .......ANS

 

Posted Date: 10/20/2012 12:41:16 AM | Location : United States







Related Discussions:- Find the value of force to move a system, Assignment Help, Ask Question on Find the value of force to move a system, Get Answer, Expert's Help, Find the value of force to move a system Discussions

Write discussion on Find the value of force to move a system
Your posts are moderated
Related Questions
Determine the component of force: The force of 500N is acting at a point subtends an angle of 60° with the horizontal. Determine the component of force along X and Y dire

how to design and fabricate wilson hartnell governor?

Illustrate the structure of SET SET allows the exchange of data between different CAD/CAM systems and also between CAD/CAM systems and central data banks. It features a much mo

Objectives of the Registration Scheme They are summarized as follows: To enumerate and maintain a roll of small industries to which the package of incentives and suppor

Q. What is Shatter test? Shatter test: This test is measure of toughness of the moulding sand. It indicates the capacity of the moulding sand to with stand rough handling dur

pre heating of casted material for welding

If Engine Does Not Start at Cranking Speed Causes of Problem Remedy Incorrect electrode gap of spark plug Fouled spar


Is there a metal that does not contain iron? Ans) Most commercially available aluminum having some other materials, but only accidental traces of iron, if any. For example, Copp

The Dimension Style Command The Dimension Style command can be used to change appearance of dimensions. The best method  to create a new style before you can start creating dim