#include <iostream>
#include <cmath>
using namespace std;
int main() {
double sudut, kecepatanAwal, gravitasi = 10.0;
cout << "Masukkan sudut peluncuran (derajat): ";
cin >> sudut;
cout << "Masukkan kecepatan awal: ";
cin >> kecepatanAwal;
double sudutRadian = sudut * M_PI / 180.0;
double waktu = (2 * kecepatanAwal * sin(sudutRadian)) / gravitasi;
cout << "Waktu yang diperlukan: " << waktu << endl;
return 0;
}
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