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31.) Energi kinetik = 1/2×m×v²
Ek¹ = 1/2×2×10² = 100 J
Ek² = 1/2×2×20² = 400 J
Selisih = 300 J (E)
32.) Percepatan/a = perubahan kec/perubahan waktu
a = 6/0,003 = 200 m/s²
F = m×a
= 2×200 = 400 = 4×10² (B)
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Ingat!! Jadikan semua satuan menjadi Satuan Internasional.
31.) Energi kinetik = 1/2×m×v²
Ek¹ = 1/2×2×10² = 100 J
Ek² = 1/2×2×20² = 400 J
Selisih = 300 J (E)
32.) Percepatan/a = perubahan kec/perubahan waktu
a = 6/0,003 = 200 m/s²
F = m×a
= 2×200 = 400 = 4×10² (B)