All the work in the Frisch-Peierls memorandum was purely theoretical, so the purpose of the MAUD committee was to do the research required to determine if applying nuclear technology to make a bomb was, in reality, feasible.
All the work in the Frisch-Peierls Memorandum was purely theoretical, so the purpose of the MAUD committee was to do the research required for what Frisch and Peierls called a super bomb. The MAUD Committee investigated if applying nuclear technology to make a bomb was, in reality, feasible.