Rigidbody2D stuck on Box Colliders

Questions & Answers
1

I have a camera with a box collider and Rigidbody2D (The character). This camera contains the following script:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CameraMover : MonoBehaviour
{
	public float speed; // set to 5 in editor
	public float accelleration; // set to 3 in editor
	public float jumpSpeed; // set to 10 in editor
	public float sprintMultiplier; // set to 2 in editor
	Vector3 tempVelocity;

    void Update()
    {
    	if(Input.GetKeyDown(KeyCode.Space))
    	{
    		tempVelocity.Set(0, jumpSpeed, 0);
    		this.GetComponent<Rigidbody2D>().AddForce(tempVelocity, ForceMode2D.Impulse);
    	}
        else
        {
        	if(Input.GetKeyDown("a") && !Input.GetKey("d"))
        	{
        		tempVelocity.Set(-speed, 0, 0);
        		this.GetComponent<Rigidbody2D>().AddForce(tempVelocity, ForceMode2D.Impulse);
        	}
        	if(Input.GetKeyDown("d") && !Input.GetKey("a"))
        	{
        		tempVelocity.Set(speed, 0, 0);
        		this.GetComponent<Rigidbody2D>().AddForce(tempVelocity, ForceMode2D.Impulse);
        	}
        	if(Input.GetKey("a") && !Input.GetKey("d"))
        	{
        		tempVelocity.Set(-accelleration * Time.deltaTime, 0, 0);
        		this.GetComponent<Rigidbody2D>().AddForce(tempVelocity, ForceMode2D.Impulse);
        	}
        	if(Input.GetKey("d") && !Input.GetKey("a"))
        	{
        		tempVelocity.Set(accelleration * Time.deltaTime, 0, 0);
        		this.GetComponent<Rigidbody2D>().AddForce(tempVelocity, ForceMode2D.Impulse);
        	}
        	if(Input.GetKeyUp("a") || Input.GetKeyUp("d"))
        	{
        		tempVelocity.Set(-this.GetComponent<Rigidbody2D>().velocity.x, 0, 0);
        		this.GetComponent<Rigidbody2D>().AddForce(tempVelocity, ForceMode2D.Impulse);
        	}
        }
        if(Input.GetKeyDown(KeyCode.LeftShift))
        {
        	speed *= sprintMultiplier;
        	accelleration *= sprintMultiplier;
        }
        if(Input.GetKeyUp(KeyCode.LeftShift))
        {
        	speed /= sprintMultiplier;
        	accelleration /= sprintMultiplier;
        }
    }
}

After falling a short distance, the character collides with one or more sprites that I have created which also contain box colliders in the 2D variant.
When moving left or right using the “a” and “d” keys, the character is occasionally stopped, but only while colliding with the sprites.
What could be changed in order for the character to keep moving while colliding with these other sprites?

Apologies if the content of this question is difficult to read, this is my first question on this forum.

2

@Christiansquare Looks like an easy to fix problem. The collider of the object that stops the caracter from moving has to be set to trigger.

3

With a constant velocity (without using acceleration as in the script above), the character no longer gets stuck.