Question

помогите пожалуйста.

Answer 1

1) x=0.8sin(π*t)

2) x=0.08sin(2π*t)

3) A=0.4м    T=0.4 c   x=0.4cos(π/2)=0

4) A=0.12м    v=50   x=0.12sin(2π*50*0.4)=0

(n=t/T=20 колебаний)

5) x=20sin(π*t)

A=20 м   T=2 с    v=0.5 Гц

6) x=20 cos(w*t)

x=0.01    A=0.02   cos(wt)=0.01/0.02=0.5

wt=π/3     t=T/6 c

7) x=0.05 sin (2π*t)