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A satellite has to maintain a constant velocity of 28 800 kmhour in order to stay in earth's orbit however moon has 3 679 kmhour still it does not fall?
Wiki User
∙ 15y ago
It is curious; higher orbits are SLOWER, not faster.
Low orbits are fast; the ISS orbits in 90 minutes or so, in an orbit about 150 miles high.
High orbits are slow. Communications satellites are 23,000 miles up, and take 24 hours. The Moon is 250,000 miles up, and takes 29.5 days.
Wiki User
∙ 15y ago
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Draw a diagram showing the motion of a satellite around Earth is the satellite accelerating?
WikiAnswers cannot support diagrams - sorry. A satellite around the Earth will have an elliptical or (in some cases) a circular orbit. The satellite is constantly accelerating towards the Earth due to the gravity between the Earth and the satellite. However, because of the satellite's tangential velocity, it stays at a relatively constant distance from the Earth.
Why doesn't the Moon travel in straight line and continue in space?
The normal tendency of objects - when no force acts on them - is to move in a straight line, at a constant speed and direction (that is, a constant velocity). However, when there is a force, an object's velocity may be changed. That's what happens to the Moon, as well as to other objects in some orbit. In this case, the force is provided by gravitational attraction from Earth.
What would happen to a satellite orbiting the earth if its velocity increased?
It would move further out of the current orbit. Possibly into an unstable orbit & be flung from earth altogether (however, the people who design satellites are fairly smart and won't allow that to happen)
If the moon orbits the earth at a constant speed why is it always changing?
Its speed is not always constant; because of its orbit, it sometimes goes faster or slower. However, its appearance changes because of where it is compared to the earth and sun - when the sun shines on part of it, that part is visible, but where it is in shadow, it is not visible.
How can you see a tornado on satellite image?
You can't. Tornadoes descend from thunderstorms, and so cannot be seen from above. You can, however, see the thunderstorms in a satellite image. See the link below for a satellite time lapse of storms tha produce tornadoes.
Does the speed of a car moving in a circular path at 15 mph remain constant Or does the acceleration or its velocity remains constant?
The magnitude of the velocity will be constant however the direction will be constantly changing. The acceleration will remain constant towards the centre of the circle
Is a force needed to keep a moving spacecraft moving in a straight line?
It depends where the space craft is. If it is in deep space far away from any large mass (like a planet, star, etc) then the answer is no. If it is close to a mass then the answer is yes. An equal and opposite force is required to balance the gravitational force to keep it moving in a straight line.
What is the acceleration of an object that moves at constant velocity?
It is called constant velocity. Rate is just another word for velocity. This, however, is dependant upon the path the object is taking. If it is moving in a parabolic path, or a curve of some sort (anything but a straight line), then the object is actually accelerating (as acceleration is a change in velocity OR direction.)
How does the initial velocity change with he point of released of inclined plane?
the INITIAL velocity does not change. It is constant. however, the velocity changes depends on the friction and inclination of the inclined plane.
Which describes an object's velocity that changes by the same amount each second?
If the acceleration is constant, yes. However, the acceleration of an object can vary. The rate of change of acceleration is called jerk.
What is the difference between constant velocity and average velocity?
The average velocity is trying to find how fast the car is going at an average rate. However, constant velocity means that the car is going at an unchanged velocity. Say a car is going at 75 m/s and then changes to 50 m/s and then changes to 25 m/s in 30 minutes. The car is going at different velocities at different times. To find the average, you simply just add the 3 together, then divide by 3 giving you, 50 m/s In the 30 minutes, it's average velocity was 50 m/s However, for a car going at a constant velocity, it means that the velocity never changes. Say a car is going at a constant velocity for 30 minutes at 50 m/s. In those 30 minutes, the car will never change it's velocity and remain at 50 m/s. Constant means that it doesn't change.
Which physical quantity is conserved of an earth satellite?
Velocity of satellite and hence its linear momentum changes continuously due to the change in the direction of motion in a circular orbit. However, angular momentum is conserved as no external torque acts on the satellite.
Can a body have constant velocity and changing speed?
No, in order for the velocity to be constant, the speed has to be constant. Speed is a scalar, meaning that it is just a number. (A car goes 50 miles per hour). Velocity is a vector, which indicates that it needs a measure of its displacement and a direction. (A car is going 50 mph to the east). A body can have a constant speed but a changing velocity because the direction can change while the speed is constant. (A car goes 50 mph around a roundabout). However, a body can not have a constant velocity with a changing speed. A car can not be slowing down yet still be going the same speed and direction.
Draw a diagram showing the motion of a satellite around Earth is the satellite accelerating?
WikiAnswers cannot support diagrams - sorry. A satellite around the Earth will have an elliptical or (in some cases) a circular orbit. The satellite is constantly accelerating towards the Earth due to the gravity between the Earth and the satellite. However, because of the satellite's tangential velocity, it stays at a relatively constant distance from the Earth.
Is a car on a circular track has also constant velocity?
Yes, IF it maintains constant speed on the track. The academic definition of velocity is speed and the associated direction, a vector. A car traveling in a circle is constantly changing direction. However, most people, including physicists when they are not writing textbooks, treat velocity and speed as interchangable such that a car going a constant speed on a circular track would be considered to have a constant velocity even though the direction in which it is traveling is constantly changing.
Which physical quantity remains constant in an elastic collision?
In a uniform circular motion,the magnitude of velocity remains constant,that is speed is constant,however due to change in direction in circular path constantly the motion is accelerated due to change in velocity.
What is the acceleration of a car that maintains a constant velocity of 100 kmh for 10 s?
The car is travelling fast. However, its acceleation is zero because there is no change in velocity in 10 s.
