Ask Question
13 November, 00:02

the royal Gorge Bridge in Colorado rises 321 m above the Arkansas river. suppose you kick a rock horizontally off the bridge. The magnitude of the Rock's horizontal displacement is 45.0 m. Find the speed at which the rock was kicked

+5
Answers (1)
  1. 13 November, 00:27
    0
    2.48 m/s

    Explanation:

    We can use the kinematic equation,

    s = ut + ½at²

    Where

    s = displacement

    u = initial velocity

    t = time taken

    a = acceleration

    Using the equation in vertical direction,

    321 = 0*t + ½*g*t², u = 0 because initial vertical velocity is 0

    We get t = 8.01 s

    Using the equation in the horizontal direction,

    52 = u*8.01 + ½*0 * (8.01) ²,. a = 0 because no unbalanced force act on object in that direction

    So u = 2.48 m/s
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “the royal Gorge Bridge in Colorado rises 321 m above the Arkansas river. suppose you kick a rock horizontally off the bridge. The magnitude ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers