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Thank you for you reply, Yeah, I understood the first one thanks to the website you posted. first question answer: a) A . B = 0 and A × B ≠ 0 and the answer for the second one is ' C= 17.5 + 0 ' Thanks (*

Actually I have two questions Homework Statement Vectors A and B are shown on the figure below. Which one of the following statements is correct? a) A . B = 0 and A × B ≠ 0 b) A . B ≠ 0 and A × B = 0 c) A . B ≠ 0 and A × B ≠ 0 d) A . B = 0 and A × B = 0 Picture: http://i.imgur.com/X0GB9.png...

Thank you very much ^^

For the second part use Vf = Vi + at just as Doc Al said; be careful with the signs ( Vf and Vi ) You can also use this equation yf = yi + Vi(t) + 0.5at^2

Is E22.3 N the same as ( 22.3 east of north ) ? Is it This angle | / | / | / | / -----------------x or this one | | | | |_____------- this angle ----------------- the question is " A wind with a velocity of 40.3 KM/H blows [E22.3 N]. What is the north component of the velocity in Km/h? I...