Salaah

Masbooq (latecomer) joining the Salaah

Q:

  1. If the Imaam is in ruku, does one have to first tie the hands and stand in order to get the rakaat, or does going directly into ruku after takbeer suffice?
  2. If one makes takbeer and while going into the sitting posture the imaam makes one salaam, can one still join the salaah?
  3. If one has to complete missed rakaats in jamaat: In the final sitting, does one read attahiyat, durood as well as the dua, or just stop after reciting the shahadah?