Recent content by reisada

  1. R

    Calculus 2 Book: Advice for Portuguese Students

    Hello I am having calculus 2 at university in my country ( portugal ). The topics are basically double and triple integrals all the way through stokes. Do you guys have any advice on a book that could help me study this course? Thank you very much and I am sorry about my english
  2. R

    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    ok so i restarted the exercise and now i got an answer, can you guys please try to see if this is the correct answer? because this exercise is not from any book with solutions so this is what i did: x=vocos60t y=vosin60t+5t^2 vosin60t+5t^2=0 ( when it is vertically at the same spot...
  3. R

    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    aha , now ill try to do the position/time which is: r(t)= vocostetat ex + vosintetat - 5t^2 ey now if i find the zeros of this function i can get the time right?EDIT : damn this way i still don't know the vo...
  4. R

    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    well first of all let me repost :D the parametric equations are : x=vo*costeta*t and y=vo*sinteta-5t^2 then when vo*costeta*t=5, , when 5 is the reach, we can find the vo vo=5/0.5t but now how can i find the time for this equation? am i going well?
  5. R

    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    english is not my native language , ill do my best Homework Statement someone wants to throw water to a flower that is to the distance of 5 m and at the same level as the place where the water comes from. air resistance doesn't count what is the velociity of the water so that it hits the...
Back
Top