48 BAB III EVALUASI 3.1 Kunci Jawaban Uji Kompetensi 1. r(2) = 16 ̂+ 10 ̂, (2)= 24 ̂+ 4 ̂, = 24 ̂+ 4 ̂ d (A ) B 2. dt =0 ̂ 3. V= - ̂ + 6 dan a= ̂-18 ̂ 4. ∅ = 0 5. W =80