Resistance of gravity in cycling

For a cyclist, the gravity affects the speed with a negative effect for ascent or positive for descent.

Newton's law

The Newton's law determines the role of the hearth attraction. The gravity resistance **Rg** depends on the slope **Pt** (slope calculation) and the total weight, i.e. the total mass **Mt** (cyclist plus equipment) and the acceleration of gravity **g**.

Calculation formula

In summary, the mathematic formula allowing calculation is:

**Rg = Mt g Sin(Arctan(Pt))**

Calculation of the cycling power

J.L