physics questions (picture)

Question

1018 · Answer

attachment

kittiwitti1 · Answer

This is the Math section...

anonymous · Answer

Same question was posted by another user some time ago, see if you can get some help from there http://openstudy.com/study#/updates/55e9b55ce4b0819646d947e4

1018 · Answer

i know  @kittiwitti1 but i hardly get anyone to answer in the physics section. and these guys still help me with physics questions even if i post them here

anonymous · Answer

@1018 check out the question I made, it uses different concepts, give it a try :p http://openstudy.com/study#/updates/55ec34b2e4b0227206138d83 About your current question, I'm not so sure, I was myself having some doubt so I wasn't able to help the last user who asked this

1018 · Answer

thank you, someone commented on a little information but not answers. haha, although i think i got an idea on how to answer. i'll try again and come back if i fail. haha. thanks!

kittiwitti1 · Answer

I'll help you in the Physics section whenever I'm online long enough. I have enough expertise in that area. =]