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Vt = 10m/s
Vo = 4m/s
Ditanya :
- Percepatan (a) setelah (t) = 10 sekon ....... m/s²
- Jarak (s) = ..... m
Jawab:
Vt = Vo + at
10 = 4 + a 10
10 - 4 = 10a
6 = 10a
a = 6/10
a = 0,6 m/s²
s = Vo t + 1/2 at²
s = 4 . 10 + 1/2 . 0,6 . 10²
s = 40 + 30
s = 70 m
atau cara lain mencari jarak.
Vt² = Vo² + 2as
10² = 4² + 2 . 0,6 . s
100 = 16 + 1,2s
100 - 16 = 1,2s
84 = 1,2s
s = 84/1,2
s = 70 m