Tidal Force
F = 2·G·M·m·delta_r / r^3
What it says
The stretching force from gravity pulling harder on the near side than the far side of a body.
Symbols
| Symbol | Quantity | Dimension |
|---|---|---|
F | Tidal force (N) | M L T^-2 |
M | Primary mass (kg) | M |
m | Secondary mass (kg) | M |
delta_r | Body extent (m) | L |
r | Separation (m) | L |
Work it out
Enter what you know. No account needed.
Fill in all but one: M, m, delta_r, r, F are all empty.
Filed under Astrophysics · derive through it in the explorer