8.1 Sesaran, Halaju dan Pecutan Sebagai Fungsi Masa
What is displacement?
Apakah sesaran?
Displacement (s) of a particle and a fixed point is the distance between the particle and the nearest fixed point measured in a certain direction.
Sesaran (s) bagi zarah adalah jarak antara zarah itu dengan satu titik tetap, diukur dalam arah tertentu.
Here is a simpler and easier to understand way to explain the displacement, velocity and acceleration based on the direction of motion of the particle relative to the fixed point O:
Berikut adalah cara yang lebih ringkas dan mudah difahami untuk menjelaskan sesaran, halaju dan pecutan berdasarkan arah gerakan zarah relatif kepada titik tetap O:
Displacement:
Sesaran:
- Negative displacement (s<0): The particle is to the left of point O.
- Zero displacement (s=0): The particle is exactly at point O.
- Positive displacement (s>0): The particle is to the right of point O.
Velocity: Halaju:
- Negative velocity (v<0): The particle moves to the left.
- Zero velocity (v=0): Zarah berada dalam keadaan pegun (tidak bergerak).
- Positive velocity (v>0): Zarah bergerak ke arah kanan
- Negative acceleration (a<0): The particle's velocity is increasing over time (the particle is speeding up).
- Zero acceleration(v=0): The particle's velocity is constant (either at its maximum or minimum).
- Positive acceleration (a>0): The particle's velocity is decreasing over time (the particle is slowing down).