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--- cycle_12_-_2d_motion [2025/06/25 16:33] – ncox
+++ cycle_12_-_2d_motion [2025/08/11 20:36] (current) – ncox
@@ Line 31: / Line 31: @@
 ----
-===== 4. Resultant Velocity =====
+===== 4. River Crossing (Deeper) =====
+[[https://docs.google.com/document/d/1X4_n4hKkgeWfg3Km7d1gMd9e349pNIhI0bvbMioTNJM/edit?usp=sharing | Time of crossing activity]]
 {{ ::2d_motion_check-in_3.pdf |Check-in #3}}
-===== 5. Analyzing River Crossing =====
-*coming soon
+----
+===== 5. Resultant Current =====
+{{ :resultant_current_notes.pdf |Resultant Current Notes}}
+{{ ::2d_motion_check-in_4.pdf |Check-in #4}}
+----
@@ Line 45: / Line 54: @@
 {{ ::2d_motion_review.pdf |2D Motion Review}}
+----
+===== Extensions =====
+{{ ::2d_motion_challenge_problem.pdf |2D Motion Challenge Problems}}