(adsbygoogle = window.adsbygoogle || []).push({}); 2 mp problems that I sorta understnad but dont??

Edit: I figured out first problem... I was missing + pi/2 in the equation but still a little screwed up on second problem :

Edit: Figured both of em out with help. thanks for the help

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# Homework Help: 2 mp problems that I sorta understnad but dont?

**Physics Forums | Science Articles, Homework Help, Discussion**