Levers overcome a resistance when a force is applied. They have a fixed support to which they freely turn, called the fulcrum. In some levers, it is possible to increase speed by applying the force over a shorter distance than the resistance is moved. A proportional increase of force is needed for this.
It's a simple machine, consisting of a rigid bar that rotates about a fixed point which is known as "Fulcrum" (most important part), It <span>affects the effort, or force and do the amount of work
Energy is "the ability to do work". Energy is how things change and move. It takes energy to cook food, to drive to school, and to jump in the air. Different forms of Energy. Energy can take a number of different forms.
the variations in riser height or tread depth should not be grater than that is equal to 9.5 mm but the maximum riser height should be the but variation in riser height should not exceed to . The minimum riser height should be 7 inches which is equal to the 178 mm
