Read the below case and answer the following questions:
After a severe earthquake, a rescue team was assigned the task of transporting heavy medical equipment from the ground floor to the first floor of a damaged building. Since electricity was unavailable, the team had to rely on simple machines to complete the operation safely.
The rescue team had access to the following:
1. A wooden ramp to push the equipment to the first floor.
2. A fixed pulley to lift supplies through a window.
3. A long iron crowbar to lift one side of the equipment while placing rollers underneath it.
The medical equipment weighed \(900\ N\).
When using the crowbar, the rescue worker applied an effort of \(300\ N\) to lift the equipment.
The lifting operation involved \(9000\ J\) of work and was completed in \(45\ s\).
Use the information given above to answer the following questions.
The rescue team had access to the following:
1. A wooden ramp to push the equipment to the first floor.
2. A fixed pulley to lift supplies through a window.
3. A long iron crowbar to lift one side of the equipment while placing rollers underneath it.
The medical equipment weighed \(900\ N\).
When using the crowbar, the rescue worker applied an effort of \(300\ N\) to lift the equipment.
The lifting operation involved \(9000\ J\) of work and was completed in \(45\ s\).
Use the information given above to answer the following questions.
1. Which simple machine among the following is an example of a lever?
2. How much power was developed during the lifting operation?
3. Which statement best explains why the rescue team preferred using the wooden ramp instead of lifting the equipment vertically?
4. What is the main function of the fixed pulley used during the rescue operation?