# physical science

A stone of 8 kg mass falls from the top of an 80 m-high building. Find the velocity of the stone when it reaches the ground

1. 👍 0
2. 👎 0
3. 👁 199
1. V^2 = Vo^2 + 2g*d
Vo = 0
g = +9.8 m/s^2
d = 80 m.
Solve for V.

1. 👍 0
2. 👎 1

## Similar Questions

1. ### 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

asked by unknwon on October 10, 2014
2. ### science

Two stones are launched from the top of a tall building. One stone is thrown in a direction 30.0degree above the horizontal with a speed of 10.0m/s ; the other is thrown in a direction 30.0degree below the horizontal with the same

asked by bob on September 8, 2008
3. ### 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

asked by Jordan on September 7, 2015
4. ### physics

a student standing on the roof of a 50 meter high building kicks a stone at a horizontal speed of 4 meters per second, how much time is required for the stone to reach the level ground below?

asked by jack on January 16, 2011
5. ### Math

A person walks on the building.He slips 1m for every 5m he climbs. If the building is 53m high and he takes 5 seconds to climb 1m. Find the total time taken by him to get on the top of the building.

asked by Prateekshya on April 8, 2017
1. ### 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

asked by mt on May 2, 2013
2. ### 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

asked by Anonymous on September 21, 2016
3. ### 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 12.7 m below the point where the stone leaves your hand. At

asked by Breauna on February 2, 2015
4. ### math

a person was climbing on a building. He slips 1 m for every 5 metre he climbs up. If the building is 53 m high and he takes 5 seconds to climb 1 metre find the total time taken by him to get on the top of the building.

asked by Anonymous on April 25, 2014
5. ### maths

from the top of a building 10metres high the angle of depression of a stone lying on the horizontal ground is 69degrees.calculate the distance of the stone from the foot of the building in metres to 1 decimal place

asked by akin on October 6, 2016
6. ### 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

asked by Kaylee on September 27, 2016