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Gravity is a characteristic of space that causes a forceto appear between every
two masses, drawing them together.
If they're free to move, then each mass moves toward the other one because of the force.
Since the force on each one continues and doesn't stop, they keep coming together
faster and faster until they hit each other. That's called "acceleration".
If one of the masses happens to be the earth, then anything that's near it and
getting pulled toward it moves 9.8 meters per second faster every second than
it moved one second earlier. That's called the "acceleration of gravity" on or near
the earth.
If an object started out on the other side of the universe and got pulled all the way to
the earth by gravity, going faster and faster all the time, then by the time it got here,
it would hit the ground at a speed of 11,200 meters per second. That's about 25,000
miles per hour. If you want to launch a rocket or toss a ball fast enough so that gravity
can't pull it back to earth, that's how fast you have to toss it.
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∙ 13y ago
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What is it when gravity and speed are balanced?
I assume you mean when the acceleration of gravity stops altering the velocity of a falling object. At this point the force of air friction is equal but opposite to the force of gravity, velocity stops increasing in magnitude. This is called "terminal velocity."
The speed an object reaches when the force of gravity is balanced by the force of air resistance?
That is the object's terminal velocity.
What does the word gravity means in science?
It is the atmospheric pressure of the earth pulling all things down but gravity can be overcome with speed and velocity.
What is the constant speed of an object reached when the force of gravity is balanced by air resistance?
Terminal Velocity
How is Acceleration related to speed?
Acceleration is the rate of change of velocity (not speed). Acceleration is the rate of change of velocity over time. Velocity is defined by speed and direction. A satellite orbiting the earth at a constant speed is still accelerating because gravity is making it travel in a circle (or ellipse) and consequently its direction and therefore its velocity is constantly changing.
How do gravity and speed matter with velocity?
1. Gravity is acceleration. 2. speed is a scalar quantity. 3 . velocity is a vector quantity. In other words, gravity is the force which accelerates matter towards the centre of a mass. Speed is how fast something is moving in general. Velocity is speed in one direction. I suppose a link could be using the suvat equations with velocity and acceleration. But vector and scalar quantities don't mix very well.
What is it when gravity and speed are balanced?
I assume you mean when the acceleration of gravity stops altering the velocity of a falling object. At this point the force of air friction is equal but opposite to the force of gravity, velocity stops increasing in magnitude. This is called "terminal velocity."
What is the speed an on object reaches when the force of gravity is balanced by air resistance called?
terminal velocity
When an object reaches terminal velocity and there is no net force what is the initial force that got it going to keep it in motion?
Gravity. The object starts at zero velocity, and gravity always pulls the same. Drag, however, increases when velocity increases. Terminal velocity is when gravity has accelerated the object to the speed where drag is the same as gravity.
What is escape volocity?
Escape velocity is the speed you would have to go to escape gravity.
The speed an object reaches when the force of gravity is balanced by the force of air resistance?
That is the object's terminal velocity.
Why you must study escape velocity?
You don't. "Escape velocity" is a meaningless number. "Escape velocity" is the speed at which a CANNON SHELL must be fired in order to escape from the Earth's gravity well. With a powered rocket, you can "escape" from the Earth's gravity at ANY speed - as long as you have enough fuel.
What is critical speed of pump?
Critical velocity is the speed that a falling object reaches when gravity and air resistance equalize on the object.when a liquid posses streamlined motion and its velocity is less than certain limiting velocity is called critical velocity for fluids and critical velocity for satellites can be defined as the velocity will give stable orbit, this is called the critical velocity for satellites
To escape from a planets gravity an object must reach a speed called the?
Escape Velocity
What does the word gravity means in science?
It is the atmospheric pressure of the earth pulling all things down but gravity can be overcome with speed and velocity.
What is the constant speed of an object reached when the force of gravity is balanced by air resistance?
Terminal Velocity
How is Acceleration related to speed?
Acceleration is the rate of change of velocity (not speed). Acceleration is the rate of change of velocity over time. Velocity is defined by speed and direction. A satellite orbiting the earth at a constant speed is still accelerating because gravity is making it travel in a circle (or ellipse) and consequently its direction and therefore its velocity is constantly changing.
