1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help! AP physics C mechanical

Tags:
  1. Mar 7, 2012 #1
    1. The problem statement, all variables and given/known data
    the position "r" of a moving particle moving in an xy plane is given by r=(2.00(t^3) -5t)î+ (6.00-7.00(t^4) )j with r in meters and t in seconds. In unit notation calculate:
    A) R
    B) Velocity
    C) R when t is 25 seconds
    What is the able between the positive direction of the x-axis and a line tangent to its path at t=25 s


    2. Relevant equations

    I have no clue what to do!

    3. The attempt at a solution
     
  2. jcsd
  3. Mar 7, 2012 #2

    berkeman

    User Avatar

    Staff: Mentor

    Welcome to the PF.

    What is "unit notation"?

    And surely in the Relevant Equation section, you could list the method for converting from rectangular to polar notation, since you are asked to find an angle. And what is the relationship between the position R(t) and the velocity V(t) in general?

    You need to show some effort on your schoolwork questions, if you want to receive tutorial help here.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Help! AP physics C mechanical
  1. 2004 ap physics c help (Replies: 1)

Loading...