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Saya kerjakan semampu mungkin ya :)Diket :
m = 25g = 0,025 kg
Vo = 200m/s
S = 20 cm = 0,2 m
Jawab :
V^2 = Vo^2+2as
0^2 = 200^2+2a(0,2)
-40000 = 0,4a
-40000/0,4 = a
a = -100000 m/s^2
F = m.a
F = 0,025 x 100000 (minus tidak perlu dihitung)
F = 2500 joule
Maaf jika ada kesalahan :)