Page 16 - Usaha dan Energi
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E-Modul Model Pembelajaran Problem Based Learning ( PBL ) Kelas X
Pada contoh di samping :
W = ½ (∆F) (∆ s) + (F) (∆s)
= ½ ( 8 - 2 )( 12 – 3 ) + (2) (12-3)
= 27 joule + 18joule = 45 joule
15
