#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
 
int main() {
    // Konstanta gravitasi
    const double g = 10.0;
 
    // Input sudut peluncuran (derajat) dan kecepatan awal (m/s)
    int sudut;
    double kecepatanAwal;
    cout << "Masukkan sudut peluncuran (0-90 derajat): ";
    cin >> sudut;
    cout << "Masukkan kecepatan awal (m/s): ";
    cin >> kecepatanAwal;
 
    // Konversi sudut ke radian
    double sudutRadian = sudut * M_PI / 180.0;
 
    // Hitung jarak horizontal terjauh (rumus gerak parabola)
    double jarakHorizontal = (kecepatanAwal * kecepatanAwal * sin(2 * sudutRadian)) / g;
 
    // Tampilkan hasil dengan 1 angka di belakang koma (misal 9.6)
    cout << fixed << setprecision(1);
    cout << "Jarak horizontal terjauh: " << jarakHorizontal << " meter" << endl;
 
    return 0;
}
 

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