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t = 1-3 (berarti 1, 2, 3)
S1= 2x1²+1
= 2+1 = 3m/s
S2= 2x2²+2
= 2x4+2
= 8+2= 10m/s
S3= 2x3²+3
= 2x9+3
= 18+3 = 21 m/s
rata"= = 11,33 m/s
maaf kalo salah ya..