#include <iostream> // Untuk input/output
#include <cmath>    // Untuk fungsi matematika seperti sin() dan M_PI
 
int main() {
    double kecepatan_awal, sudut_derajat, jarak_terjauh, sudut_radian;
    const double g = 9.8; // Percepatan gravitasi (m/s^2)
 
    // 1. Input dari pengguna
    std::cout << "Masukkan kecepatan awal (m/s): ";
    std::cin >> kecepatan_awal;
    std::cout << "Masukkan sudut peluncuran (derajat): ";
    std::cin >> sudut_derajat;
 
    // 2. Konversi sudut ke radian
    sudut_radian = sudut_derajat * (M_PI / 180.0);
 
    // 3. Hitung jarak horizontal terjauh (rumus gerak parabola)
    jarak_terjauh = (kecepatan_awal * kecepatan_awal * sin(2 * sudut_radian)) / g;
 
    // 4. Tampilkan hasil
    std::cout << "Jarak horizontal terjauh yang ditempuh: " << jarak_terjauh << " meter" << std::endl;
 
    return 0;
}

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