Jawaban:
60 J
cari EMA nya dulu, karena EMA= EMB
EMA = EPA + EKA
=3×4×10 + 0
=120 J
lalu cari EPB
=3×2×10 =60
karena EMB = EPB+ EKB
maka 120 = 60 + EKB
EKB = 120-60
=60 J
jadikan jawab tercerdas ya, thx
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Jawaban:
60 J
cari EMA nya dulu, karena EMA= EMB
EMA = EPA + EKA
=3×4×10 + 0
=120 J
lalu cari EPB
=3×2×10 =60
karena EMB = EPB+ EKB
maka 120 = 60 + EKB
EKB = 120-60
=60 J
jadikan jawab tercerdas ya, thx