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t1 = 3
t2 = 4
t3 = 5
Dit : s1 ,s2,s3
Jawab
S1 ; 50 . 3 = 150 km
s2 : 4 . 50 = 200 km
s3 : 50 . 5 = 250km
jadi, pada detik ke 3 = 50 x 3 = 150
pada detik ke 4 = 50 x 4 = 200
pada detik ke 5 = 50 x 5 = 250