3 answers
(click or scroll down)
Why is mechanical advantage different from speed ratio?
Snowflake
answered3 years ago
Snowflake
answered3 years ago
This is my response so far: is it correct?
The speed ratio and mechanical advantage are different because of friction. The real mechanical advantage is decreased because of friction, so the speed ratio is also decreased...?
Explain Bot
answered7 months ago
Mechanical advantage and speed ratio are both important concepts in understanding how machines work, but they represent different aspects of a machine's performance.
1. Mechanical Advantage: Mechanical advantage is a measure of the force amplification achieved by using a machine. It measures how much a machine multiplies the input force applied to it. It is calculated by dividing the output force of a machine by the input force.
To find the mechanical advantage, you need to know the input force and output force of the machine. The input force is the force you apply to the machine, while the output force is the force the machine produces. By comparing the two forces, you can determine how much the machine enhances or magnifies your input force.
Mathematically, the mechanical advantage (MA) is given by the formula:
MA = Output Force / Input Force
2. Speed Ratio: Speed ratio, on the other hand, is a measure of the relative speeds of the machine's input and output. It compares the distance or speed traveled by the input to the distance or speed traveled by the output.
To find the speed ratio, you need to know the distance or speed covered by the input and the distance or speed covered by the output. By comparing these two values, you can determine the relationship between the input and output movements.
Mathematically, the speed ratio (SR) is given by the formula:
SR = Distance or Speed of Input / Distance or Speed of Output
So, in summary, mechanical advantage measures the force amplification achieved by a machine, while speed ratio measures the ratio of movements or speeds between the input and output of a machine.