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Kinematics and dynamics is very important concepts inengineering,physics engineeringandmechanical engineering. Kinematics is the branch of classical mechanics which deals with and describes the motion of objects or group of objects (systems) without considering the causative factors behind the motion where as dynamics is the study of relationship between the motion of objects along with the motion changes and their underlying causes. We at其实tsmind.com提供运动学和动态分配帮助，运动学和动态家庭作业帮助，运动学和beplay体育怎么安装动态项目的帮助和问题解决方案，并逐步答案。beplay提款封号我们的专家经验丰富且合格，他们能够在很短的时间内解决复杂的运动学和动态问题。从才华横溢的导师那里得到解决的运动学和动态问题，这些教师变得容易。

Kinematics

The term kinematics has been derived form the Greek word kinetin which means to move. The use of kinematics is decreasing, but it still plays some role in physics. It is also used in the discipline of animal locomotion and biomechanics. The simplest form of application of kinematics is in particle motion which can be transitional or rotational.

The complexity increases in the study of rigid bodies. The rigid bodies are the collection of particles which have invariant distances among themselves. The rigid bodies are able to undergo rotation as well as transition and can also have a combination of these rotations. The system of rigid bodies form a more complicated case, which is linked together by mechanical joints by the use of kinematics, the designing of mechanism can be done which has a desired range of motion. It can also find the possible range of motion which a given mechanism can undertake. Some examples of a simple kinematics are oscillations of a piston in an engine and the movement of a crane

Branches of kinematics

线性运动学 - 也称为过渡动力学，是沿线空间点运动的描述，这也称为运动的轨迹或路径。该路径可以弯曲（曲线）或直（直线）。

Particle kinematics-The study of kinematics of a single particle is termed as particle kinematics. The collections of particles, their dynamics are studied by the results obtained.

Rotational motion

Rotational kinematics- Is also called angular kinematics and is the description of rotation of an object. For describing the rotation, various methods are used. An example of which is the Euler angle. Attention is given to the simple rotation of the object about an axis of fixed orientation. For convenience, the z axis is chosen. The description of rotation involves angular velocity, angular position as well as angular acceleration.

Dynamics

动态涉及运动原因和运动的变化。因此，动力学研究了为什么对象在运动和旋转力的各个方面。它还包括对运动发生中各种扭矩的影响的研究。研究动力学的研究人员随着时间的推移研究了物理系统的发展或改变，同时还考虑了发生这些变化的原因。艾萨克·牛顿（Isaac Newton）提供的物理定律建立了控制物理动力学的各种物理定律。他的力学系统使对动态的研究更加容易。动力学也与牛顿的第二项运动定律密切相关。但是总的来说，动态使用了所有三个运动定律。在经典电磁学的学科中，麦克斯韦方程描述了动力学。经典系统的动力学涉及电磁和力学，并使用麦克斯韦方程，牛顿法律和洛伦兹力进行描述。

Concept of force

Force can be defined as an exertion or pressure which causes the movement of an object, as described by Newton. The force describes the influences which cause a free body’s acceleration. It can be created by a push or pull, which changes the direction of an object, which thus has new velocity or can also deform temporarily or permanently. In general terms, by the application of force, an object’s state of motion can be changed.

Newton’s laws and motion of objects

As described by Newton, force is the ability which causes the acceleration of an object.

1. As per Newton’s first law, an object in motion will continue in motion unless an external force is applied. The law also deals with inertia. Inertia is the property of material which helps in resisting acceleration and depends entirely on the mass of the object.

2. As per Newton’s second law, the quantity of force is equal to the product of mass and acceleration.

3. As per Newton’s third law, for every action there is an equal and opposite reaction.

多体动力学用于建模互连柔性或刚体的动态行为。这些身体中的每一个都可能经历大型旋转和过渡位移。刚体的动力学涉及对刚体运动的运动研究，与颗粒的运动不同，颗粒运动不同，占据了空间，并且具有诸如惯性矩和质量中心的几何特性。分析动力学涉及动态研究的整个领域以及有关它们的各种定律。