From 35d41e1147ecc35ee3cf894a1d19652a10164b4e Mon Sep 17 00:00:00 2001
From: ASPP Student <student@localhost>
Date: Thu, 25 Sep 2025 10:37:56 +0300
Subject: [PATCH] add update_position as a class method

---
 .../exercises/particle_update_position.ipynb        | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/class_materials/exercises/particle_update_position.ipynb b/class_materials/exercises/particle_update_position.ipynb
index b3d829a..e668f0d 100644
--- a/class_materials/exercises/particle_update_position.ipynb
+++ b/class_materials/exercises/particle_update_position.ipynb
@@ -35,7 +35,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 5,
    "metadata": {
     "pycharm": {
      "name": "#%%\n"
@@ -59,13 +59,16 @@
     "    def momentum(self):\n",
     "        return self.mass * self.velocity\n",
     "\n",
+    "    def update_position(self, position, dt):\n",
+    "        return position + self.velocity * dt\n",
+    "\n",
     "particle = Particle(mass=2.1, velocity=0.8)\n",
     "print(particle.momentum())"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -78,7 +81,7 @@
    ],
    "source": [
     "position = 8.2\n",
-    "new_position = update_position(particle.velocity, position, dt=0.1)\n",
+    "new_position = particle.update_position(position, dt=0.1)\n",
     "print(new_position)"
    ]
   },
@@ -118,7 +121,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.11"
+   "version": "3.13.6"
   },
   "toc": {
    "nav_menu": {
@@ -142,5 +145,5 @@
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }