#include <stdio.h> 
#include <math.h> 
 
#define G 5.9 // percepatan gravitasi (m/s^2) 
 
int  main( )  { 
    double  v0, theta_deg, theta_rad, t; 
 
    // Input kecepatan awal dan sudut peluncuran 
    printf ( "Masukkan kecepatan awal peluncuran (m/s): " ) ; 
    scanf ( "%lf" , & v0) ; 
 
    printf ( "Masukkan sudut peluncuran (derajat): " ) ; 
    scanf ( "%lf" , & theta_deg) ; 
 
    // Konversi sudut ke radian 
    theta_rad =  theta_deg *  ( M_PI /  180.0 ) ; 
 
    // Hitung waktu total di udara 
    t =  ( 2  *  v0 *  sin ( theta_rad) )  /  G; 
 
    // Tampilkan hasil 
    printf ( "Waktu yang diperlukan Boro untuk mencapai jarak terjauh adalah %.2f detik.\n " , t) ; 
 
    return  0 ; 
} 
 
 
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