Kinematyka Wzory - Essential Formulas for Motion
This page presents key formulas for ruch jednostajny prostoliniowy (uniform linear motion) and ruch zmienny (variable motion). For uniform linear motion, the velocity (V) is constant, and the displacement (S) is calculated by multiplying velocity and time (t). In variable motion, acceleration (a) is introduced, which changes the velocity over time.
Definition: Ruch jednostajny prostoliniowy is motion with constant velocity in a straight line.
The formulas for uniform linear motion are:
For variable motion, the following equations are provided:
- a = (Vk - Vp) / t
- V = V₁ + a • t
- S = V₁ • t + (at²) / 2
- V = V₁ - a • t
- S = V₁ • t - (at²) / 2
Highlight: The equation S = V₁ • t + (at²) / 2 is particularly important for solving problems involving ruch jednostajny przyspieszony.
Example: In ruch jednostajny przyspieszony, if a car starts from rest and accelerates at 2 m/s², after 5 seconds it will have traveled S = 0 • 5 + (1/2) • 2 • 5² = 25 meters.
These formulas are essential for solving various kinematyka zadania (kinematics problems) and are frequently used in kinematyka klasa 7 sprawdzian (7th-grade kinematics tests).