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Vo = 3 m/s
a = 0,4 m/s²
dijawab :
a. Kecepatan setlh t = 5 s
a = (Vt-Vo)/t
0,4 = (Vt-3)/5
0,4 x 5 = Vt-3
2 = Vt - 3
Vt = 2 + 3
Vt = 5 m/s
b. Jark setelh 10 s :
S = Vot + 1/2 x a x t²
= 3x10 + 1/2x0,4 x 10²
= 30 + 1/2 x 0,4 x 100
= 30 + 20
= 50 m