Question

Am nevoie de raspuns urgent la aceasta problema!
Problema de clasa a 11 a

Answer 1

Răspuns:

Graficul e o sinusoida .Ca sa determini punctele prin catt trece

dai pe rand valori lui t si calculezi elongatiA y

t=0

y=10sinπ/6*0=10sin 0 =10*0=0

t=1
y=10sinπ/6*1=10sinπ/6=10*1/2=5

t=2

y=10 sinπ/6*2=10sinπ/3=10*√3/2=5√3

t=3

y=10 sin π/6*3=10sinπ/2=10*1=10

t=4

y=10sinπ/6*4=10sin 2π/3=10sin120°=10*√3/2=5√3

t=5

y=10 sin5π/6=10*sin 150°=10*1/2=5

t=6

y=10sin6π/6=10sinπ=10*0=0

ContinNui t=7, 8,...,12

graficul e in atasament

Energia totala=mω²A²/2=

1*(π/6)²*10²/2=π²/36*100/2=

π²/36*50=25π²/18 j

Explicație: