Beginner Projectile Motion problem

  • Thread starter Myll
  • Start date
  • #1
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Homework Statement


Fire a cannon ball at 30 degrees above the horizontal with an initial speed of 65 m/s from the top of a building 50 m high.

Find the total time the cannon ball is in the air.

What's the horizontal distance from the base of the building when the ball strikes the ground?


Homework Equations





The Attempt at a Solution


For the time I got 7.9 s, but I don't know if that's right.
 

Answers and Replies

  • #2
lewando
Homework Helper
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How did you arrive at that result?
 

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