The force acting on an object is given by  Fx = (5x − 6) N,  where x is in meters. (a) Choose the plot that best describes the force versus x from  x = 0  to  x = 3.00 m. A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,−3) and extends up and to the right at a constant slope to (3,9). A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,−6) and extends up and to the right at a constant slope to (3,9). A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,3) and extends down and to the right at a constant slope to (3,−9). A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,6) and extends down and to the right at a constant slope to (3,−9). (b) Estimate  Fx(0).  N Estimate  Fx(3.0 m).  N Estimate the x intercept.  m From your graph, find the net work done by the force as the object moves from  x = 0  to  x = 3 m.  (Use your estimates.)  J

Principles of Physics: A Calculus-Based Text
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Chapter6: Energy Of A System
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The force acting on an object is given by 

Fx = (5x − 6) N,

 where x is in meters.

(a) Choose the plot that best describes the force versus x from 
x = 0
 to 
x = 3.00 m.
A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,−3) and extends up and to the right at a constant slope to (3,9).
A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,−6) and extends up and to the right at a constant slope to (3,9).
A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,3) and extends down and to the right at a constant slope to (3,−9).
A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,6) and extends down and to the right at a constant slope to (3,−9).

(b) Estimate 
Fx(0).

 N

Estimate 
Fx(3.0 m).

 N

Estimate the x intercept.
 m

From your graph, find the net work done by the force as the object moves from 
x = 0
 to 
x = 3 m.
 (Use your estimates.)
 J
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