In this situation the motives of the defendant and the reasonableness of their conduct are the factors used to determine the unreasonableness of their actions. This is one of the few exceptions to the rule that malice is not relevant in tort law. In Christie v Davey, the defendant was deliberately creating a noise to frustrate the claimants; based on this, it was held that their actions were malicious, unreasonable, and amounted to a nuisance.
A fixed pulley has a mechanical advantage of one, however, it is able to change the direction of force on an object. A movable pulley has a mechanical advantage of two and is connected to the object being moved.A block and tackle pulley provides a mechanical advantage of three and is made up of fixed and movable pulleys. Calculating the mechanical advantage of a pulley:ith a pulley, the user pulls one end of the rope and the other end of the rope pulls up on the object you want to move. The force produced by the user of the pulley is called the input force and the force pulling up on the object is called the output force.
Mechanical advantage, which is correlated to the usefulness of a machine, refers to the proportion of force output to force input. Force... A single fixed pulley has a mechanical advantage of 1:1. Mechanical advantage, which is correlated to the usefulness of a machine, refers to the proportion of force output to force input. Force...