Mechanics

지진계와 관성의 법칙 Seismometer and Inertia

Seismometer and Inertia

Inertia Inertia is the resistance, of any physical object, to any change in its velocity. Examples of Inertia Shaking a bottle of ketchup. When bringing the bottom down, the suddenly stopping it,…
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인공위성의 원리 Principle of Satellite

Principle of Satellite

Shot How cannon ball become a satellite? a. Think of cannon ball falling in parabolic shape. The trajectory drawn by the cannon ball is actually part of an elliptical orbit that focuses…
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관성 Inertia

Inertia

Run Inertia Inertia is the resistance, of any physical object, to any change in its velocity. Examples of Inertia Shaking a bottle of ketchup. When bringing the bottom down, the suddenly stopping…
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충격 Impulse

Impulse

Reset Run momentum Moving or rotating objects have the momentum. Momentum is a numerical representation of the motion of an object. The momentum of an object that is moving linearly can be…
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뉴턴의 진자 Newton's Cradle

Newton’s Cradle

Newton’s Cradle Newton’s cradle is made up of five iron balls, each of ball is suspended in two strings to prevent rotation of the ball. Originally, Newton’s cradle was created to show…
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등속 원운동의 조건 Condition of Circular Movement

Condition of Uniform Circular Motion

The angle between the direction of motion(blue) and direction and force(red) Run Even if the force works, the speed does not change? When an object moves linearly at a constant velocity, the…
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스윙바이 Swingby 2

Slingshot Effect

Run Slingshot or gravity assist Let us suppose that we threw a perfectly elastic ball towards a moving train. And suppose that the mass of the train is very heavy. The mass…
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스윙바이 Swingby 1

Gravity Assist

Path view Run Gravity assist – How to increase the speed of a spacecraft using the gravity of the moon or Celestial Body Gravity assist is the use of the relative movement…
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중력의 범위와 세기 Range and Intensity of the Gravity

Range and Intensity of the Gravity

Reset Gravity Every mass object has a pulling force. This force is proportional to the mass of the two objects, and inversely proportional to the square of the distance between the two…
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