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Anonymous

5y ago

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How do you get the mechanical advantage of a pulley?

For a pulley, when is it that the mechanical advantage is greater than 1 and when is it that it is equal to 1? If a rope was hung over a pulley with unequal weights applied to both ends, the larger weight (77kg) would pull the lesser weight (30kg) upward, and so what would the mechanical advantage there be? The thing about this question is that if a rope were hung over a pulley and the tension at each point was the same (neglecting the mass of the rope and pulley), then how is it that if both ends of the rope point downward that the mechanical advantage becomes 2 (if there was just that one pulley)? Is the mechanical advantage any different if someone was applying a force to one end of the rope compared to gravity acting alone?


What is the reaction force to you pulling on a rope?

The reaction force to you pulling on a rope is the tension force exerted by the rope in the opposite direction. This tension force is equal in magnitude and opposite in direction to the force you apply to the rope.


What is the wave speed at the bottom of the rope?

The wave speed at the bottom of the rope is the speed at which the wave travels through the rope.


What do you call waves in a rope?

Waves in a rope are often referred to as ripples. These ripples are created by disturbances along the length of the rope, causing a wave-like pattern to form.


What is the force on a rope?

The force on a rope is typically determined by the tension applied to it. This tension arises from the pulling or stretching of the rope, causing the rope to support a load or resist a force. The force on a rope can be calculated using principles of Newton's laws of motion and equilibrium.