Ask Question
29 March, 23:04

A cannonball is fired horizontally from the top of a cliff. the cannon is at height h = 80.0 m above ground level, and the ball is fired with initial horizontal speed v0. assume acceleration due to gravity to be g = 9.80 m/s2. assume that the cannon is fired at time t=0 and that the cannonball hits the ground at time tg. what is the y position of the cannonball at the time tg/2?

+4
Answers (1)
  1. 29 March, 23:16
    0
    Answer;

    = 60 m

    Explanation;

    s = 80 m

    = ½at² = ½ * 9.8m/s² * t² → t = 4.04 s

    At any time 0 ≤ t ≤ 4.04 s, height is

    y = Yo + ½at² = 80 m - 4.9m/s² * t²

    so at t = 4.04s/2 = 2.02 s,

    y = 80 m - 4.9m/s² * (2.02s) ² = 60 m

    (so it drops 15 m during the first 2.02 s and 60 m during the second 2.02 s)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A cannonball is fired horizontally from the top of a cliff. the cannon is at height h = 80.0 m above ground level, and the ball is fired ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers