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A. Cara biasa
Vt= Vo+at
10=5+a4
4a= 5
a= 5/4....(1)
s = Vot+½at²
=5.4+½.5/4.4²
=20+½.5/4.16
=20+½.20
=20+10=30m
B. Cara cepat
jarak yg ditempuh mobil sma dg luas bangun yg diarsir.
L trapesium = ½. jml sisi sejajar. t
=½.(10+5).4
=15.2
=30 m
dg menggunakan 2 cara diatas akan ditemukan jawaban yg sama yakni D.
smg membantu :))
L trapesium = 1/2 ( alas + atas ) tinggi
= 1/2 x ( 10+5 ) x 4
=30 m