Roy Tarigan

bisa ngk ya klok gni... Dik; n1= 100 n2=2000 t1=1 dit; t2...? n1^2/n2^2=t1/t2--> 100^2/2000=2*1/t2 --> 10000/4000000=1/t2 --> 4000000=10000t2...