using UnityEngine;
[RequireComponent(typeof(Rigidbody))]
public sealed class ForceMover : MonoBehaviour
{
    [SerializeField] private float acceleration = 4f;
    private Rigidbody body;
    private void Awake() { body = GetComponent<Rigidbody>(); }
    private void FixedUpdate()
    {
        body.AddForce(Vector3.right * acceleration, ForceMode.Acceleration);
    }
}