5. The differential equation that describes the behavior of a spring mass apparatus is called the (a) governing equation (b) equation of motion (c) complementary function (d) steady-state solution 6. Simple harmonic motion is also called (a) free undamped motion (b) pure resonant motion (c) forced motion (d) (a) and (c) 7. The period of the equation of motion given by x(t) = 6 sin (4nt) is ( a ) πS (b) 2 s (c) S (d) 0.5 s

5. The differential equation that describes the behavior of a spring mass apparatus is called the (a) governing equation (b) equation of motion (c) complementary function (d) steady-state solution 6. Simple harmonic motion is also called (a) free undamped motion (b) pure resonant motion (c) forced motion (d) (a) and (c) 7. The period of the equation of motion given by x(t) = 6 sin (4nt) is ( a ) πS (b) 2 s (c) S (d) 0.5 s