Cassidy Pangrazio: if The vector A - B is parallel to the -x axis then the vertical element to A ward off= 7.3 sin (40 six.5) will equivalent - Bvert |B| = ward off/ (sin (57)) = aprox 6.3 a million) Bhoriz= 7.3 sin (40 six.5) / (tan(33)) = aprox 8.a million 2) A horiz - Bhoriz = -7.3cos(40 six.5) - 7.3 sin (40 six.5) / (tan(33)) = aprox -13.17 3) (A+B) vert = 2x7.3 sin (40 six.5) = aprox 10.6 (A+B) horiz = -7.3cos(40 six.5) + 7.3 sin (40 six.5) / (tan(33)) = aprox 3.12 |B|= aprox sqrt (10.6^2 + 3.12^2) = aprox 11...Show more
Dexter Gold: You didn't ask a question, but I'm going to assume you're trying to solve for initial velocity. I think you have a good equation, with a few errors. Gravity is working in the same direction as the initial velocity, downward, so 9.8 should not be negative. I don't know why you put the (-111)^2, I think you meant to write the time there, so you should have 111m=Vi3.80s+.5(9.81)(3.80)^2From there it's very basic math.... if you really! need help from there...Just subtract the .5(9.81)(3.80)^2 from each side, then divide both sides by 3.80.. and you're done! voila!EDIT: also, height is positive, I don't know why you put negative......Show more
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