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atau
asal mula.
saat bola di titik tertinggi , kecepatan Vt = 0
Gerak vertikal tentang Vt
1. Vt = Vo - gt
St = Vo.t - 1/2gt²
2. Vt² = Vo² - 2gh
jika menggunakan no.1 ,
cari t saat benda di titik tertinggi = Vo/g
= 30/9,8
= 3,06 s
sehingga ht = 30. 3,06 - 1/2.9,8. (3,06)²
= 91,8 - 45,9
= 45,9 m
≈ 46 m
no. 2
Vt² = Vo² - 2gh
2gh = Vo²-Vt²
= Vo² - 0
2g h = Vo²
h max = vo²/2g
= 30² / 2. 9,8
= 15.30/9,8
≈ 46 m