No student came in on Tuesday, but 3 people and 4 people in Wednesday and Thursday respectively, some were struggling for homework problems, mostly is about question 7, they were struggling how to approach question, and they kind of confused about x,y component, so I told them X and Y are independent to each other, in order to reach X meter away horizontally, is depends on X component, but not Y, and when it come to reach Y height, X component will not affect but actually Y. probably two dimensional motion thinking are not too clear for some of the students.
Anyway, good luck for them on exam 1 in incoming next Monday!
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