In the Mechanic Dynamics subject, monitored by Dr. Faisal Mohamad Ayob, I have learnt about the Kinetics of a Particle : Work and Energy of Chapter 14 and Planar Kinetics of a Rigid Body : Work and Energy of Chapter 18. Between these two chapters, I found out that they have some similarities and differences that can be compared.
In Chapter 14 which is Kinetics of a Particle : Work and Energy, the objectives that I learnt are I knew the concept of a conservation of energy to solve the kinetic problems. Besides, I would be able to develop and apply the principle of work and energy that …show more content…
In Chapter 14, I learnt about the Kinetics of Particles, it is about the application of particle kinetics to system of forces is wholly dependent upon Newton’s Second, Law. Meanwhile in Chapter 18, it is about Planar Kinetics of Rigid Body, it apparently is when all the particles of a rigid body move along paths which are equidistant from a fixed plane, the body is said to undergo planar motion. There are three types of rigid body planar motion, translation (rectilinear translation, curvilinear translation), rotation about a fixed axis, and general plane motion. The similarity that I found from Chapter 14 and Chapter 18 is both of them influenced by the conservation of energy of work done in every problems or calculations using the same formula, T1 V1 T2 V2 where it states that the sum of the potential and kinetic energies of the body remains constant when the body moves from one position to …show more content…
Translational motion is the motion by which a body shifts from one point in space to another. One example of translational motion is the motion of a bullet fired from a gun. An object has a rectilinear motion when it moves along a straight line. Furthermore, in Chapter 14, it consists of power and efficiency which is required to move an object. For example, engines and motors are often rated in terms of their power output. The power requirements of the motor lifting this elevator depend on the vertical force F that acts on the elevator, causing it to move upwards. However in Chapter 18, it perform the relative motion analysis of a point on the body which states the calculation of the motion of an object with regard to some other moving object. Thus, the motion is not calculated with reference to the earth, but is the velocity of the object in reference to the other moving object as if it were in a static