1. Not finding help here? Sign up for a free 30min 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!

Projectiles on an Incline

  1. Apr 29, 2012 #1
    1. The problem statement, all variables and given/known data

    Incline_Question.png

    Part (a) was fine, managed it okay.

    2. Relevant equations

    [itex]v_x = 20\cos30 -9.8\sin35 = 3.32[/itex]

    [itex]v_y = 20\sin30 -9.8\cos35 = -10[/itex]

    Part (b) is what is giving me trouble at the moment.

    3. The attempt at a solution

    [itex]\dfrac{4}{5} = \dfrac{v_b - v_a}{u_a - u_b}[/itex]

    I really don't know where to go from here.

    The plane isn't moving. So if the plane was object 'b' then vb and ub would both be 0.

    The speed at which the projectile strikes point A (the final velocity) = the initial velocity after the collision has taken place.

    You could then solve to find the velocity of the projectile after the collision.

    Revising for my Mechanics 3 A level exam, AQA.
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Projectiles on an Incline
  1. Projectile Motion (Replies: 0)

  2. Projectile motion (Replies: 0)

  3. Projectile Motion (Replies: 0)

Loading...