State of motion of body change with force, Mechanical Engineering

State of motion of body change with force:

A body on contact with the surface is being pulled along it with the increasing force from zero. How does the state of motion of body change with force? Draw graph and illustrate.

Sol.: When the external force is applied on body and increases

 

1217_State of motion of body change with force.png

gradually then initially static friction force acts on the body that is exactly equal to the applied force and the body will remain at rest. The graph is straight line for this range of force which is shown by OA on the graph. When the applied force reaches to the value at which body just begins moving, then the value of this friction force is called as limiting friction. Further any increase in force will cause the motion of the body and the friction in this case is dynamic friction. This dynamic friction remains constant with more increase in force.

Points to be Remembered

1. If applied force is not able to begin motion; frictional force will be equal to the applied force.

2. If applied force is able to initiate motion, and then applied force will be greater than frictional force.

3. The answer will not come in terms of normal reaction.

4. Assuming that the body is in limiting equilibrium.  

Posted Date: 10/17/2012 6:29:10 AM | Location : United States







Related Discussions:- State of motion of body change with force, Assignment Help, Ask Question on State of motion of body change with force, Get Answer, Expert's Help, State of motion of body change with force Discussions

Write discussion on State of motion of body change with force
Your posts are moderated
Related Questions
Tessellated Modellers    Solid Modeling This describes a class of simplified boundary-representation modellers which approximate to curved faces by a number of plane faces. Sin

Q. Setting and installations of insulation? The setting and installations of insulation shall be to Specification No. later. The steam drum surfaces shall be insulated with

Example of Reduce system to a single force and couple: A system of parallel forces is acting on rigid bar as shown in the figure given below. Reduce this system to  a sing

How can I achieve a back and forth movement of carriage system. How can I reverse the motor to go back and forth.

Spray up method In a slight variation, to suit the necessity of bigger size parts the fibre resin and rovings are fed concurrently. The fibre rovings are fed via a chopper whe

Importance of angle of twist: Q: What is the importance of angle of twist? From relation T / J = G. θ / L ;  we have               θ= T . L / G . J As G , L , J

Classification Based on Type of Welding  Fusion welding : These processes involve fusion of the base metal to complete the weld. Fusion welds generally  do  not  require  thea

how is varignons theorem useful in engineering mechanics

a) Determine a root of the equation x-cosx =0 using Bisection method correct to three decimal places. b) Determine smallest possible root of the equations x-e -x =0 using Regul