3. Force F (N) 1 0 2 3 natural Position x (ft) required length c Figure Ex-1 2A variable force F(x) in the positive x-direction is graphed in the accompanying figure. Find the work done by the force on a particle that moves from x = 0 to x =5. 7. A spring beyond stretch %3D 8. A sprin 50 45 N w 2 40 (a) Fin (b) Fin bey 30 20 10 (c) Fir 3 4 5. of Position x (m) Figure Ex-2 9. Assum in Exercise 2, consider the 1 ft be

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.