Contact force

In physics, a contact force, is a force that acts at the point of contact between two objects, in contrast to body forces. Contact forces are described by Newton's laws of motion, as with all other forces in dynamics.

Contact force is the force in which an object comes in contact with another object. Contact forces are also direct forces. Contact forces are ubiquitous (present, appearing, or found everywhere) and are responsible for most visible interactions between macroscopic (visible to the naked eye; not microscopic) collections of matter. Pushing a car up a hill or kicking a ball or pushing a desk across a room are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied by the person on the car, while in the second case the force is delivered in a short impulse. Certain contact forces describe specific phenomena and are important enough to have been given unique names. The most common instances of this include friction, normal force, and tension. According to forces, contact force may also be described as the push experienced when two objects are pressed together.

单词	Contact force
释义	Contact force 英语例句库 By using the equivalent model,contact force of ideal trochoid transmission was calculated,and the calculation result agree relatively well with a theoretical one. 利用质量弹簧等价模型方法计算了理想结构下摆线针轮传动的齿面载荷分布。原声例句可汗学院：物理 So on a macro level we view this is kind of a contact force. 所以在宏观层面我们把这看做一种接触力。可汗学院：物理 So one misconception is that people forget normal force is a contact force. 所以一个误解是人们忘记了法向力是一种接触力。英语百科 Contact force In physics, a contact force, is a force that acts at the point of contact between two objects, in contrast to body forces. Contact forces are described by Newton's laws of motion, as with all other forces in dynamics. Contact force is the force in which an object comes in contact with another object. Contact forces are also direct forces. Contact forces are ubiquitous (present, appearing, or found everywhere) and are responsible for most visible interactions between macroscopic (visible to the naked eye; not microscopic) collections of matter. Pushing a car up a hill or kicking a ball or pushing a desk across a room are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied by the person on the car, while in the second case the force is delivered in a short impulse. Certain contact forces describe specific phenomena and are important enough to have been given unique names. The most common instances of this include friction, normal force, and tension. According to forces, contact force may also be described as the push experienced when two objects are pressed together.
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