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There is an equation which states:

S=V0t+1/2*at2

S is the distance

V0 is the initial velocity

t is time taken

a is acceleration

In your case,

S=V0t+1/2*at2

4,9=0*t+1/2*9,8*t2

4,9/4,9=t2

1=t2

t=1 second

You can calculate the final velocity with simple equation

a=V2-V1/t

9,8=V2/1

V2=9,8m/s2

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6y ago
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AnswerBot

3d ago

Assuming acceleration due to gravity is approximately 9.81 m/s^2, the stone will take about 1 second to fall the 4.9m. The final speed at the end of the fall will be approximately 9.81 m/s.

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Q: If a stone is dropped from the edge of the roof how long does it take to fall 4.9m and what is its speed at the end of that fall?
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What will happen to a stone dropped from the roof of a single story building to the surface of the earth?

The stone will accelerate towards the Earth due to gravity until it reaches its terminal velocity. Upon impact with the Earth's surface, the stone will experience a sudden deceleration and come to a stop.


A stone is dropped from the edge of the roofHow long does it take to fall 9.8m?

It will take approximately 1 second for the stone to fall 9.8 meters, neglecting air resistance. This is because the acceleration due to gravity is 9.8 m/s^2, and the time taken to fall can be calculated using the kinematic equation t = sqrt(2y/a), where t is time, y is the distance fallen, and a is acceleration.


When two objects of different masses are dropped at different positions will they fall at the same speed?

Yes, in the absence of air resistance, all objects near the surface of the earth when dropped will accelerate due to gravity at the same rate of 9.8 m/s^2. This means that they will fall at the same speed regardless of their mass or starting position. However, in the presence of air resistance, the speed at which they fall may vary.


A ball is in free fall after being dropped what will the speed of the ball after 2 seconds of free fall?

The speed of an object in free fall increases by 9.8 m/s every second. Therefore, after 2 seconds of free fall, the speed of the ball will be 9.8 m/s * 2 seconds = 19.6 m/s.


Do you fall faster when higher?

No, gravity accelerates all objects at the same rate regardless of their height. This means that an object will fall at the same speed regardless of how high it is when it is dropped.

Related questions

How far does a rock fall in 9 seconds?

depends on the mass of the stone, the shape of the stone, and the height dropped from. sorry dude.


What will happen to a stone dropped from the roof of a single story building to the surface of the earth?

The stone will accelerate towards the Earth due to gravity until it reaches its terminal velocity. Upon impact with the Earth's surface, the stone will experience a sudden deceleration and come to a stop.


What would happen if you dropped a stone on the moon?

Umm nothin really, becuase its zero gravity and they stone would fall slowly


Will a stone and a feather fall with the same speed if there were no air?

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A stone is dropped from the edge of the roofHow long does it take to fall 9.8m?

It will take approximately 1 second for the stone to fall 9.8 meters, neglecting air resistance. This is because the acceleration due to gravity is 9.8 m/s^2, and the time taken to fall can be calculated using the kinematic equation t = sqrt(2y/a), where t is time, y is the distance fallen, and a is acceleration.


Which will fall first in vacuum paper or stone?

Depends on which one is dropped first. If they are both dropped at the same time, they will both reach the ground at the same time.


When two objects of different masses are dropped at different positions will they fall at the same speed?

Yes, in the absence of air resistance, all objects near the surface of the earth when dropped will accelerate due to gravity at the same rate of 9.8 m/s^2. This means that they will fall at the same speed regardless of their mass or starting position. However, in the presence of air resistance, the speed at which they fall may vary.


How long does a stone take to fall 100 meters?

it depends on the weight on the stone, the wind speed at the time, the strength of velocity, etc.


How long does it take a stone to fall 13 m?

If you get the speed of the rock then you can use Time= distance/ speed So all you need is the speed and you can work it out


A ball is in free fall after being dropped what will the speed of the ball after 2 seconds of free fall?

The speed of an object in free fall increases by 9.8 m/s every second. Therefore, after 2 seconds of free fall, the speed of the ball will be 9.8 m/s * 2 seconds = 19.6 m/s.


Do you fall faster when higher?

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What is lighter rock or paper?

Between rock and paper, paper is lighter. However if dropped from same height they do fall at the same speed.