Lever the power out, and the ratio of output to input force is given by the ratio of the distances from the fulcrum to the points of application of these forces. This is known as the "law of the lever." The mechanical advantage of a lever can be determined by considering the balance of moments or torque, "T", about the fulcrum. where F is the input force to the lever and F is the output force. The distances "a" and "b" are the perpendicular distances between the forces and the fulcrum. Since the moments of torque must be balanced, formula_3 .
Little Lever Little Lever Little Lever is a large village within the Metropolitan Borough of Bolton in Greater Manchester, England. Historically in Lancashire, it is southeast of Bolton, west of Radcliffe and west-southwest of Bury. During the 19th century the population was employed in cotton mills, paper mills, bleach works, terracotta works, a rope works and in numerous collieries. Lever is derived from the Old English "laefre", which means place where the rushes grow. The township was recorded as Parua Lefre in 1212, from the Latin, "parva" meaning little. The name was recorded in several ways, Lethre in 1221, Leuere in 1278,