Tractors and phystics

Agate presents its current favorite.
Within our collections, numerous illustrations or photographs deserve to be exhibited for their aesthetic quality or originality. Today, let's take a lesson in physics with a drawing illustrating the effort required to move a tractor alone on sloping ground.

Source of the llustration : CNEEMA. (1974). Tracteurs et machines agricoles – Le Livre du Maître – Tome 3 – 2e édition – Autres matériels et problèmes économiques (in French), Tractors and agricultural machinery - The Master's Book - Volume 3 - 2nd edition - Other equipment and economic problems – Lesson 4 – Effort nécessité par le déplacement d’un tracteur seul sur un terrain de pente α (in French), Effort required to move a tractor alone on sloping ground α – 336 p. 

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