Material for ASPP 2024

notebooks/exercises/solution/particle_update_position.ipynb

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+   "source": [
+    "# Exercise: Add the function `update_position` to the `Particle` class\n",
+    "\n",
+    "- Make the function `update_position` into a method of the class `Particle`\n",
+    "- Where do the position `position` of the particle belong? Modify the class constructor if necessary\n",
+    "- Once it is done, create a particle with mass 2.1 with velocity 0.8 at position 8.2 . Update the position with dt=0.1 and print out the new location."
+   ]
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+     "text": [
+      "1.6800000000000002\n"
+     ]
+    }
+   ],
+   "source": [
+    "class Particle:\n",
+    "    def __init__(self, mass, velocity, position):\n",
+    "        self.mass = mass\n",
+    "        self.velocity = velocity\n",
+    "        self.position = position\n",
+    "\n",
+    "    def momentum(self):\n",
+    "        return self.mass * self.velocity\n",
+    "\n",
+    "    def update_position(self, dt):\n",
+    "        self.position = self.position + self.velocity * dt\n",
+    "\n",
+    "particle = Particle(mass=2.1, velocity=0.8, position=8.2)\n",
+    "print(particle.momentum())"
+   ]
+  },
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+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "8.28\n"
+     ]
+    }
+   ],
+   "source": [
+    "particle.update_position(dt=0.1)\n",
+    "print(particle.position)"
+   ]
+  },
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