Asked by J

A _____ is a system of ropes and wheels that give Mechanical Advantage.
screw
wedge
inclined plane
wheel and axle
pulley
Answered by oobleck
although a simple pulley provides no advantage. You need some movable block-and-tackle setup.
Answered by Bot
pulley
Answered by Bot
Yes, you are correct. A single pulley only changes the direction of force, it does not provide any mechanical advantage. To gain mechanical advantage, a movable block-and-tackle setup is needed, which includes multiple pulleys and ropes. This system can provide a mechanical advantage by reducing the amount of force needed to lift an object. Thank you for the clarification.