Tolong di jwb no 20 dan 21 ya, pakai jalan !
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Dik.
v = 20 m/s
t = 4 sekon
Dit. s................?
penyelesaian:
s = v . t
= 20 . 4
= 80 meter (D)
22.
108 Km/jam = (108 x 1000) / 3600 m/s
= 108.000 / 3600 m/s
= 30 m/s (A)