#include <stdio.h>
#include <math.h>

#define G 9.8
#define PI 3.14159

main()
{
	float init_angle, v0, t1, delta_t;
	int N, i;
	float x, y, v_y, t, init_angle_rad;
	float v_x_0, v_y_0;

	clrscr();
	printf("Initial Angle (degree) = ? ");
	scanf("%f", &init_angle);
	init_angle_rad = PI * init_angle / 180;

	printf("Initial Speed = ? ");
	scanf("%f", &v0);
	v_x_0 = v0 * cos(init_angle_rad);
	v_y_0 = v0 * sin(init_angle_rad);

	printf("Start time = ? ");
	scanf("%f", &t1);

	printf("Delta-Time = ? ");
	scanf("%f", &delta_t);

	printf("No. of Delta-Times = ? ");
	scanf("%d", &N);

	printf("\nTime          X             Y             Vx            Vy");
	for (i = 0; i <= N; ++i)
	{
		t = t1 + i * delta_t;
		x = v_x_0 * t;
		y = v_y_0 * t - 0.5 * G * pow(t, 2);
		v_y = v_y_0 - G * t;
		printf("\n%-14f%-14f%-14f%-14f%-14f", t, x, y, v_x_0, v_y);
	}
	printf("\n\nPress any key to exit...");
	getch();
}