By Hannah Braem, Noor Bairuty
A pulley is designed to support movement of a cable or belt along its circumference. Pulleys are used in a variety of ways to lift loads, apply forces, and to transmit power.
- Flag poles
- Window blinds
- Water Well
- Rock climber pulley
Pulleys lose energy thru friction in the wheels and when the ropes stretch
Jake and jay both have to raise the school flag on the flag pole. If the input force is 40 and the output force is 3 what is the AMA?