Odpowiedź:
l1=l2+88
f2=3f1
1/T2=3/T1
T2=T1/3; T1=3T2
---------------
T1/T2=√(l1/l2)
3T2/T2=√((l2+88)/l2)
3^2=(l2+88)/l2
9l2=l2+88
8l2=88
l2=11 cm
l1=11+88=99 cm
-----------------------
T1= 2*π*(0,99/10)^0,5=1,9769 s
T2= 2*π*(0,11/10)^0,5=0,6589
T1= 3*T2=3*0,6589=1,9767 s
Wyjaśnienie:
Okres drgań
T=2π√l/g
T1/T2⇒√l1/l2
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Odpowiedź:
l1=l2+88
f2=3f1
1/T2=3/T1
T2=T1/3; T1=3T2
---------------
T1/T2=√(l1/l2)
3T2/T2=√((l2+88)/l2)
3^2=(l2+88)/l2
9l2=l2+88
8l2=88
l2=11 cm
l1=11+88=99 cm
-----------------------
T1= 2*π*(0,99/10)^0,5=1,9769 s
T2= 2*π*(0,11/10)^0,5=0,6589
T1= 3*T2=3*0,6589=1,9767 s
Wyjaśnienie:
Okres drgań
T=2π√l/g
T1/T2⇒√l1/l2