--> . . 11

 


>> . 11 .

3.

 


2. , . 71, , , , . , , , = xmcos ωt, , υ = -υmsin ωt.

, , ~ ~ xmcos ωt, . . = -m cos ωt. , , , .

, .

, , , , , . S, , . . S = 2πR S = 2πm. υ :

, , - , 2, , υm = ωm.

, , m = ω2m. : = ω2x.

, :

    υ = -ωxmsin ωt; = -ω2xmcos ωt.

73 .

    . 73

. , , , , . ,

.

3. . , .

= ω2x, ,

, .

, . , . = ω2x,

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