Lever force F at a point "A" located by the coordinate vector r on the bar. The lever then exerts an output force F at the point "B" located by r. The rotation of the lever about the fulcrum "P" is defined by the rotation angle "θ" in radians. Let the coordinate vector of the point "P" that defines the fulcrum be r, and introduce the lengths which are the distances from the fulcrum to the input point "A" and to the output point "B", respectively. Now introduce the unit vectors e and e from the fulcrum to the point "A"
Little Lever total of 8s. Several cases were brought before courts by family members trying to take control of the manor. A settlement in 1331, found in favour of Adam, son of Ellis de Lever and the family line was settled. There are no records about the ownership until 1448, when Henry Lever the elder owed rent of 25s (£1.25p) on the village. In 1623 the Bubonic Plague killed a third of the village population. By 1666, the village had sixty hearths liable to tax. Records show the land used for agriculture and the main landowner was John Andrews, who had the