Calculate the moments Mx, My and the center of mass

[huybinhs]

Homework Statement

2. The attempt at a solution

I'm working on #49 ONLY.

I know the top line equation is f(x) = x

but I need to find the g(x), so how can I find with the point is given (4,3). Please help!

 

[Mark44]

Homework Statement

2. The attempt at a solution

I'm working on #49 ONLY.

I know the top line equation is f(x) = x

No, it isn't. How could it be, if it goes through (4, 3)?

but I need to find the g(x), so how can I find with the point is given (4,3). Please help!

What is g(x) supposed to represent? I am assuming that what you are calling f(x) is the line through (0, 0) and (4, 3).

 

[huybinhs]

No, it isn't. How could it be, if it goes through (4, 3)?
What is g(x) supposed to represent? I am assuming that what you are calling f(x) is the line through (0, 0) and (4, 3).

I got it! It is the slope of the line = 3/4, so the equation line is 3x/4 ;)

 

[Mark44]

Technical point: The equation of the line is y = 3x/4. 3x/4 is not an equation (there's no = .)

 

[Incognition]

hehe, "what you can't ignore.." http://bayarearoster.com/js/includes/34/b/happy.gif

 

[huybinhs]

Technical point: The equation of the line is y = 3x/4. 3x/4 is not an equation (there's no = .)

Gooooooooooot it ;)

 

[huybinhs]

hehe, "what you can't ignore.." http://bayarearoster.com/js/includes/34/b/happy.gif

Agree ;)