vo = 72 km/jam
vo = (72000/3600) m/det
vo = 20 m/det
vt = 0 m/det
s = 30 m
vt^2 = vo^2 + 2as
0^2 = 20^2 + 2(a)30
0 = 400 + 60a
60a = -400
a = -400/60
a = -6,7
jadi perlambatan bus akibat pengereman adalah 6,7 m/det^2
catatan :
(-) = perlambatan (bukan negatif)
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vo = 72 km/jam
vo = (72000/3600) m/det
vo = 20 m/det
vt = 0 m/det
s = 30 m
vt^2 = vo^2 + 2as
0^2 = 20^2 + 2(a)30
0 = 400 + 60a
60a = -400
a = -400/60
a = -6,7
jadi perlambatan bus akibat pengereman adalah 6,7 m/det^2
catatan :
(-) = perlambatan (bukan negatif)