ruff changes 2.0

Author: autobotx343

physics/collisions.py

@@ -117,9 +117,9 @@ def type_collision(
     kinetic_final = 0.5 * ((mass1 * velocity_final1**2) + (mass2 * velocity_final2**2))
 
     if kinetic_final == kinetic_initial and momentum_initial == momentum_final:
-        return f'Perfectly Elastic Collision'
+        return 'Perfectly Elastic Collision'
     elif not(kinetic_final == kinetic_initial) and momentum_initial == momentum_final:
-        return f'Perfectly Inelastic Collision'
+        return 'Perfectly Inelastic Collision'
     else:
         return "Inelastic Collision"