Parabolic movement doing strange things with certain angles

Hello,

so I'm trying to move a Sphere or whatever in a parabolic trajectory. There is no target or anything, just gravity, angle and speed at which the sphere begins moving.

This is the code I'm using:

 using UnityEngine;
 
 using System.Collections;
 
  
 
 public class Parabola : MonoBehaviour {
     #region Public Variables
     public float gravity;
     public float angle;
     public float speed;
     public bool showVel = false;
     #endregion 
     Transform tr;
     float time;
     Vector3 pos;
     void Start() {
         tr = transform;
         pos = tr.position;
         time = 0;
         StartCoroutine("ParabolaStart");
     }
     void FixedUpdate() {
         time += Time.deltaTime;
         
     }
     IEnumerator ParabolaStart() {
         while (true) {
             float vel = (speed * Mathf.Sin(angle)) - (gravity * time);
             if (showVel)
                 print ("VEL PARABOLA: "+vel);
             float x = 0 + (speed * Mathf.Cos(angle) * time);
             float y = 0 + (speed * Mathf.Sin(angle) * time) - (0.5f * gravity * Mathf.Pow(time,2f));
             tr.position = new Vector3(x,y,pos.z);
             
             
             yield return 0;
         }
     }
     void OnCollisionEnter(Collision col) {
         print ("Collided with: "+col.transform.name);
         StopCoroutine("ParabolaStart");
     }
     
 }

The thing, it only seems to work with an angle in the 45~ range. The others I tried don't, the Sphere just slightly moves, if anything at all.

Am I missing something or doesn't it work that way in Unity?