#include <iostream>
#include <cmath>      // untuk sin, cos, dan konversi derajat ke radian
#include <iomanip>    // untuk setprecision
 
using namespace std;
 
int main() {
    double sudut, kecepatan_awal;
    const double g = 10;  // percepatan gravitasi dalam m/s^2
 
    // Input
    cout << "Masukkan sudut (derajat): ";
    cin >> sudut;
 
    cout << "Masukkan kecepatan awal (m/s): ";
    cin >> kecepatan_awal;
 
    // Konversi sudut ke radian
    double sudut_radian = sudut * M_PI / 180.0;
 
    // Hitung jarak horizontal maksimum
    double jarak = (pow(kecepatan_awal, 2) * sin(2 * sudut_radian)) / g;
 
    // Output dengan 3 angka di belakang koma
    cout << fixed << setprecision(3);
    cout << "Jarak horizontal maksimum: " << jarak << " meter" << endl;
 
    return 0;
}
 

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