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Kecepatan mobil berubah sesuai dengan fungsi v=(20t-0,2t pangkat 2)i. jika v dalam m/s dan t dalam s, tentukan

A.kecepatan pada t=2 s dan t=4 s
B.posisi awal setelah 10 s (dari posisi awal)


मन एक खाली बर्तन नहीं जिसे भरा जाना है, बल्कि एक जवाला है जिसे प्रज्वलित किया जाना है। required essay of 1000 words
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