Target Stands by TuffsteelTM

The force of gravity

Abbreviations

e_j	Unit vector, opposite to the direction of the acceleration of gravity
F_G	The force of gravity

More Abbreviations

Explanation

The force of gravity is proportional to the mass of the projectile and the local acceleration of gravity. The force is directed towards the center of the earth and attacks at the CG.
The force of gravity is responsible for the bending of the trajectory.

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