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vo = 20 m/s
vt = 35 m/s
s = 50 m
ditanyakan :
t = ?
jawab :;
vt = vo + at
35 = 20 + at
15 = at
s = vot + 1/2 at t
50 = 20t + 1/2 (15)t
50 = 20 t + 7,5 t
50 = 27,5 t
t = 50/27,5
t = 1,82 s