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Chapter 3

Motion Along a Straight Line

Положение и смещение
Положение и смещение
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 ...
Средняя скорость
Средняя скорость
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 ...
Мгновенная скорость - I
Мгновенная скорость - 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 ...
Мгновенная скорость - II
Мгновенная скорость - 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 ...
Среднее ускорение
Среднее ускорение
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 ...
Мгновенное ускорение
Мгновенное ускорение
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 ...
Кинематические уравнения - I
Кинематические уравнения - 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 ...
Кинематические уравнения - II
Кинематические уравнения - 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 ...
Кинематические уравнения - III
Кинематические уравнения - 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 ...
Кинематические уравнения: решение проблем
Кинематические уравнения: решение проблем
When analyzing one-dimensional motion with constant acceleration, the problem-solving strategy involves identifying the known quantities and choosing the ...
Свободно падающие тела: введение
Свободно падающие тела: введение
All objects, neglecting air resistance, fall with the same acceleration towards the Earth's center due to the force exerted by the Earth's ...
Свободно падающие тела: пример
Свободно падающие тела: пример
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 ...
Скорость и положение графическим методом
Скорость и положение графическим методом
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 ...
Скорость и положение интегральным методом
Скорость и положение интегральным методом
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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