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!

Homework Help: Cannonball Launch!

  1. Sep 18, 2011 #1
    1. The problem statement, all variables and given/known data

    A cannonball is catapulted toward a castle. The cannonball's velocity when it leaves the catapult is 32 m/s at an angle of 50° with respect to the horizontal and the cannonball is 7.0 m above the ground at this time.

    a) Assuming the cannonball makes it over the castle walls and lands back down on the ground, at what horizontal distance from its release point will it land?

    b)What is the y-component of the cannonball's velocity just before it lands? The y-axis points up.

    For this question, I did Vy=32sin50=24.5 (but this was also incorrect)

    2. Relevant equations

    R= lvl^2/9 * (sin2theta)

    3. The attempt at a solution

    For part a, I used the equation for Range and got 102.9m but it was incorrect.

    For part b, I did Vy=32sin50=24.5 (but this was also incorrect)
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

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