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◾ Materi : Dinamika Gerak Lurus◾ Sub materi : Gaya
◾ Mapel : Fisika
Diketahui :
s = 32 m
t = 4 s
m = 1000 kg
Fges = 300 N
Ditanya :
F = ?
Penyelesaian :
*Cari percepatan truk
s = Vot + ½at²
32 = 0(4) + ½a(4)²
32 = 0 + ½(16)a
32 = 8a
a = 4 m/s²
*Cari gaya yg dihasilkan
Ftotal = m. a
F - Fges = m. a
F - 300 = 1000(4)
F - 300 = 4000
F = 4300 N
Jadi, besarnya gaya yg dihasilkan truk adalah 4300 N
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-vin