The mechanical energy of the ball is conserved as it falls freely in a vacuum, meaning the sum of its potential and kinetic energy remains constant. Additionally, the total momentum of the ball is conserved during its free fall.
As an object falls freely in a vacuum, its speed increases due to gravity causing acceleration. The acceleration experienced is constant, leading to a linear increase in velocity over time.
velocity increases as it falls due to the force of gravity acting on it. Since there is no air resistance in a vacuum, the object will continue to accelerate until it reaches its terminal velocity or hits the ground.
Approximately, yes. But detailed analysis would require you to take account of its aerodynamic properties, of any rotational motion as it falls, etc.
No, the size of the ball does not affect how fast it falls in a vacuum. In a vacuum, all objects fall at the same rate regardless of their size. This is known as the principle of gravity.
490 meters
As an object falls freely in a vacuum, its speed increases due to gravity causing acceleration. The acceleration experienced is constant, leading to a linear increase in velocity over time.
velocity increases as it falls due to the force of gravity acting on it. Since there is no air resistance in a vacuum, the object will continue to accelerate until it reaches its terminal velocity or hits the ground.
They would fall in same time in a vacuum, but if air is present the ball falls faster due to high air resistance on the leaf
Approximately, yes. But detailed analysis would require you to take account of its aerodynamic properties, of any rotational motion as it falls, etc.
yes
no
it will go straight down because of gravity
In air, yes. In vacuum, no.
490 meters
As an object freely falls downwards, its speed and kinetic energy increase due to the acceleration of gravity. At the same time, its potential energy decreases as it moves closer to the surface of the Earth.
78.4 m/s
The equation for speed or fast is v=at and the distance is d=1/2 at2 the acceleration is 'a'.