The mechanical advantage of the pulley is 1.
<h2>Mechanical advantage</h2>
The ratio of the force produced by a machine to the force applied to it.
<h3>The formula for mechanical advantage.</h3>
Here, is output force and input force.
<h3>Given</h3>
A pulley is given.
<h3>To find </h3>
The mechanical advantage of the pulley.
<h3>How to find a mechanical advantage?</h3>
We know by Newton's first law.
P = W
where P is applied force
and W is the weight of the object.
Then
The mechanical advantage of the pulley is 1.
More about the mechanical advantage link is given below.
brainly.com/question/2565461
Answer:
17.94
Step-by-step explanation:
The formula for a problem like this is
P W/2 -W^2
Multiply the perimeter by half of the width and then subtract the width squared.
7.8/2 This would give us 3.9
Then we multiply this by the perimeter
3.9x20.2 This leads us too 78.78
Then we subtract w^2
7.8X7.8 Is equal too 60.84
Then we subtract
78.78-60.84 This leads us too 17.94
Table A represent a function, and Table B does not.
Why?
Table to be a function, need to satisfy following conditions (look at the .jpeg image attached with this answer):
1. condition: In first circle, EVERY element has to be connected with SOME of the elements in second circle
2. condition: In first circle, there MUSTN'T be an element that has MORE THAN ONE connection with elements in second circle
-----------------------------------------------------------------------------
Table A satisfies BOTH of these conditions; that is why table A is indeed a function.
Table B satisfies FIRST condition but it does not satisfy the SECOND condition, that is why it is NOT a function.