Assignment Engineering Mechanics Case Study

7/28/2019 Assignment Engineering Mechanics Case Study

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NAME MATRIX NO.MUHAMMAD FARIDZ BIN

ANUWAR06DKM12F1128

NUR HASANAH BINTIROHAIZAT

06DKM12F1163

MUHAMAD NAFI BINJOHARI

06DKM12F1161

MUHAMMAD SYAZWANBIN MUHAMMAD TAUHED

06DKM12F1145

AZMAN BIN JULHABIL 06DKM12F1136


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INTRODUCTION OF DYNAMICS IN ENGINEERINGMECHANICS The state of rest and state of motion of the bodies

under the action of different forces has engaged theattention of philosophers, mathematicians andscientists for many centuries.

The branch of physical science that deals with thestate of rest or the state of motion is termed asMechanics. Starting from the analysis of rigid bodies

under gravitational force and simple applied forcesthe mechanics has grown to the analysis of robotics,aircrafts, spacecrafts under dynamic forces,atmospheric forces, temperature forces etc.


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KINEMATICS

Study of the geometry of motion.Kinematics is used toleratedisplacement, velocity, acceleration,and time without references to thecause of motion.

A study of geometry of motion no

force.

Kinematics is the study of motion

without references to the forces

which cause motion.

Geometric aspect of motion.

KINETICS

Study of the relations existingbetween the forcesacting on a body, the mass of the body , and themotion of the body. Kinetics is usedto predict the motion caused bygiven forces or to determine theforces required to produce a givenmotion.

Relationship between the forces

acting on the body has force.

Relates the action of force on

bodied to their resulting motions.

Analysis of force causing the

motion.

FUNDAMENTAL CONCEPTS OF DYNAMICS :

-Dynamics is that branch of mechanics which deals with the motion of bodies under the action of force.

Dynamics incudes :


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Dynamics is important in all fields ofengineering because everything an engineerdesigns moves in some way during itslifetime.

Vectorial in nature. Related to movement,example : human being

Kinematics - position, velocity and

acceleration. Kinetics force and moment.


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BIL FUNDAMENTAL IN DYNAMICS SYMBOL FORMULA UNIT

1. Velocity V V = s/t =displacement/time

m/s

2. Acceleration A a = v/t =velocity/time

m/s2

3. Mass M - kg4. Force f F = ma N


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A particles : a mass but has no size Rigid body : a body whose changes in shape

are negligible compared with the overalldimensions of the body.

Time : a measure of succession of events

Space : geometric region occupied by bodies

Relative to some geometric reference system

by means of linear and angular measurement.


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Playing golf with direction Cycling with speed A train want to stop

A running man want to stop A car needed to stop at the traffic light


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Stepping foot

Kicking the ballLifting a heavy thing

WritingDrinking


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CALCULATION OF KINEMATICS

A train starts from rest at a station and travels with a

constant acceleration of 1 m/s. Determine the velocity of

the train when t=40s and the distance traveled during this

time.a= 1 m/s2 v= 0 s=0 t= 40s

v = v + at s = s + vt + (a)(t2

)=0 + 1(40) = 0 + 0(40) + (1)(402)

=40 m/s = 800 m


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CALCULATION OF KINETICS

Jamal was playing football at field. If the mass of ball is

25 g and the initial velocity is 60 m/s , calculate the height

for the ball is flying.25 g 1000 g = 0.025 kg

W = mg

=0.025 (9.81)=0.25 N


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http://www.thefreedictionary.com/dynamics

http://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamics

www.allinterview.com Categories

Engineering

REFERENCES
http://www.thefreedictionary.com/dynamicshttp://www.thefreedictionary.com/dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://www.allinterview.com/Interview-Questions/All.htmlhttp://www.allinterview.com/Interview-Questions/Engineering.htmlhttp://www.allinterview.com/Interview-Questions/Engineering.htmlhttp://www.allinterview.com/Interview-Questions/All.htmlhttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://physics.stackexchange.com/questions/1135/what-is-the-difference-between-kinematics-and-dynamicshttp://www.thefreedictionary.com/dynamicshttp://www.thefreedictionary.com/dynamics

Assignment Engineering Mechanics Case Study

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