Question

Pulleys are common components within exercise equipment (e.g., the universal gym, see figure below). Pulleys are simply machines that can lessen the external load making it easier to lift heavy objects or weights (see figure below). What is one advantage and disadvantage of type 2 pulleys?

Explain why corporations include type 2 pulley systems in a universal gym?

Answer 1

Class 2 pulleys are movable pulley. They offer a mechanical advantage of 2. Movable pulley allows for a much greater work done with less amount of force applied.
The advantageof type 2 pulley is greater amount of weight can be lifted easily with less amount of force applied.
The disadvantage of the type 2 pulley is that the rope attached to the pulley is longer which increases the distance from the load. This will result in pulling the load for longer period.
A 2 pulley system used in gyms is a form of combined pulley helps to provide greater mechanical advantage. It also helps to change the direction of force. As it involves two pulleys the rope needs to be pulled for a shorter distance and less time.