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  • Published on
    15-Nov-2014

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1. . , , . . . . 1 sec. . . : =4sec =0.1m. ; . 0.2m. ( ) . 4sec. ( ) . 8sec. () . 0.4m. ( ) 2. . . (. ). . :

x = 5 314 t + (SI) 2 :

x = A ( t + 0 ) (SI) :

=5 m =314 rad/sec=100 rad/sec

:

0=/2 rad

umax = A = 500

m sec m sec 2

max = 2 A = 5 10 4 2 :

u = 500 314 t + 2 = 5 10 314 t + 2 4 2

(SI)

: . : . : . : . : . . : F = D x, = 2 x ( =-0.02m D=100N/m F=+2 N). 3. . . . : = 0.04m T = 2sec f = 0.5Hz = rad / sec u MAX = A = 0.04 m / sec = 2 = 0.04 2 m / sec 2 t = 0 x = 0 , u < 0 o = rad .

x = 0.04 ( t + ) u = 0.04 ( t + ) = 0.042 ( t + ) 4. . ( t=0) ... . ; t=0, (x=o) (u>0). ; . . . [] t = 0 x = 0, u > 0 . :A 0 0 = A 0 t =0 x = A ( t + 0 ) x = 0

0 = 0 0 = 0

{0 = 2 , 0 = ( 2 + 1) }

0 0 < 2 . 0 = 0, . . t=0 : t =0 u = ( t + 0 ) u = 0 0=0 u>0 0= u