A Force Has the Dependence F_x = -Ax⁴ on the Position

question 15

Multiple Choice

A force has the dependence F_x = -ax⁴ on the position x,with the constant a = 25.0 N/m⁴.The work performed by this force when the position of its point of application changes from 0.75 m to 1.25 m is

• A)- 17.4 J.
• B)17.4 J.
• C)- 14.1 J.
• D)14.1 J.
• E)0 J.

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