Physics

posted by .

A hoodlum throws a stone vetically downward with an initial speed of 12.2 m/s from the roof of a building, 28 m about the ground. How long does it take the stone to reach the ground? What is the speed of the stone at impact?

  • Physics -

    hf=hi+ Vo*t + gt
    solve for t Watch coordinate system...

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A hoodlum throws a stone verticlly downwarsd with an inital speed of 12m/s from the roof of a building,30m above the ground a)How long does it take the stone to reach the ground?
  2. physics

    While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 7.53 m/s. The stone subsequently falls to the ground, which is 14.7 m below the point where the stone leaves your hand. At what …
  3. physics

    A stone is dropped from the roof of a building; 1.60s after that, a second stone is thrown straight down with an initial speed of 26.0m/s , and the two stones land at the same time. part a. How long did it take the first stone to reach …
  4. physics

    While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.93 m/s. The stone subsequently falls to the ground, which is 17.1 m below the point where the stone leaves your hand. At what …
  5. physics

    While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 7.65 m/s. The stone subsequently falls to the ground, which is 11.1 m below the point where the stone leaves your hand. At what …
  6. Physics

    A stone is dropped from the roof of a building: 2.5s after, a second stone is thrown straight down with an initial speed of 24m/sec, and the two stones lands at the same time. (A) how long did it take the first stone to reach the ground
  7. Physics

    While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.87 m/s. The stone subsequently falls to the ground, which is 13.5 m below the point where the stone leaves your hand. At what …
  8. Physics

    While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.05 m/s. The stone subsequently falls to the ground, which is 12.7 m below the point where the stone leaves your hand. At what …
  9. physics

    A hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building, a height h above the ground. (a) How long does it take the stone to reach the ground?
  10. physics

    A hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building, a height h above the ground. (a) How long does it take the stone to reach the ground?

More Similar Questions