Download Kunci Jawaban IPA Kelas 10 Kurikulum Merdeka Halaman 136, tentang Materi Perubahan Energi

EMA = EMB

EPA + EKA = EPB + EKB

0 + 1/2 mvA^2 = mghB + 1/2 mvB^2

0 + 1/2 m(2√15)^2 = m10(1,5) + 1/2 mvB^2

(ruas kanan dan kiri dibagi m)

0 + 1/2(2√15)2 = 10(1,5) + 1/2 vB^2

0 + 1/2(60) = 15 + 1/2 vB^2

0 + 30 = 15 + 1/2 vB^2

30 - 15 = 1/2 vB^2

15 = 1/2vB^2