<p align="right">Last Update: <font color="#4f81bd">November 30, 2024</font></p>
## BIG IDEAS
- Gravitational acceleration is how fast an object speeds up as it falls.
- Gravitational acceleration on a planet depends on the planet's mass ($M$) and radius ($R$).
- Symbol $g$
- For ease of calculations, $g$ on Earth is considered a constant value of $9.8 \ \text{m/s}$
>[!summary]
>In the absence of air resistance, all objects fall at the same rate regardless of their mass. This means that the acceleration due to gravity (denoted as $g$) is constant near the Earth's surface.
### Formula
$g \ = \ \frac{GM}{R^2} \tag{1}$
where $G$ is the gravitational constant, $M$ is the mass of the planet, and $R$ is the radius.
### Related Topics
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[[Home|Home]] | [[Notes Vault/Physics Notes Vault/Kinematics/Uniform Acceleration Motion/Constant Acceleration|Constant Acceleration]] | [[Kinematic Equations]] | [[Notes Vault/Physics Notes Vault/Kinematics/Uniform Acceleration Motion/Free Fall|Free Fall]] | [[Gravitational Acceleration]] | [[Terminal Velocity]] | [[Air resistance|Air Resistance]]