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第3章

直線に沿った動き

位置と変位
位置と変位
The position of an object defines its location relative to a convenient frame of reference at any particular time. A frame of reference is an arbitrary ...
平均速度
平均速度
To calculate the other physical quantities in kinematics, we must introduce the time variable. The time variable allows us not only to state the position ...
瞬時速度 - I
瞬時速度 - I
The average velocity during a time interval cannot tell us how fast or in what direction a particle is moving at any given time during the interval. To ...
瞬間速度 - II
瞬間速度 - II
Instantaneous velocity is the quantity that measures how fast an object is moving along its path. In other words, the instantaneous velocity of an object ...
平均加速度
平均加速度
The importance of understanding acceleration spans our day-to-day experiences, as well as the vast reaches of outer space and the tiny world of subatomic ...
瞬時加速
瞬時加速
Acceleration is in the direction of the change in velocity, but it is not always in the direction of motion. When an object slows down, its acceleration ...
運動方程式 - I
運動方程式 - I
When an object moves with constant acceleration, the velocity of the object changes at a constant rate throughout the motion. The kinematic equations of ...
運動方程式 - II
運動方程式 - II
The second kinematic equation expresses the final position of an object in terms of its initial position, the distance traveled with the initial constant ...
運動方程式 - III
運動方程式 - III
The first two kinematic equations have time as a variable, but the third kinematic equation is independent of time. This equation expresses final velocity ...
運動方程式:問題解決
運動方程式:問題解決
When analyzing one-dimensional motion with constant acceleration, the problem-solving strategy involves identifying the known quantities and choosing the ...
自由落下する物体:はじめに
自由落下する物体:はじめに
All objects, neglecting air resistance, fall with the same acceleration towards the Earth's center due to the force exerted by the Earth's ...
自由落下するボディ: 例
自由落下するボディ: 例
An object falling without any air resistance under the influence of gravitational force is said to be in free-fall. For free-falling bodies, the ...
グラフィカルな方法による速度と位置
グラフィカルな方法による速度と位置
Velocity and position can be calculated from the known function of acceleration as a function of time. The total area under the acceleration-time graph ...
積分法による速度と位置
積分法による速度と位置
If acceleration as a function of time is known, then velocity and position functions can be derived using integral calculus. For constant acceleration, ...
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