0
What else can I help you with?
What 2 ways causes an object's velocity to change?
If an object's speed changes, or it heads off in a new direction, its velocity has changed. Because of friction and gravity 1. acceleration 2. deceleration 3. change of direction
A satellite in an elliptical orbit travels at constant what?
If the path is perfectly circular, yes, the speed is constant. This should not be confused with the velocity, because while speed is constant, its direction is not; therefore velocity is always changing.
Both velocity and acceleration are vectors because?
Because it is defined that way. In common language, the words "speed" and "velocity" are used interchangeably. But in physics, if a vector quantity is desired, the word "velocity" is used; for a scalar quantity, the word "speed" is used.
What is the definition of final velocity?
Final velocity is the your last velocity traveled. Example if you travel 50m/s your final velocity is 50m/s because its the last velocity traveled, 0m/s is the initial velocity. Its not your total velocity because if u start running at 5m/s then accelerated 25m/s, your final velocity is NOT 30m/s. It is 25m/s. Also, your velocity change is 20m/s(25-5).
Is terminal velocity a type of friction?
No. Terminal velocity is a particular kind of velocity and friction is a particular kind of force. The terminal velocity of a falling object is the maximum velocity it can have because air resistance prevents it from going any faster. And air resistance is a type of friction. So terminal velocity is due to a type of friction.
How satellites stay in orbit?
The reason that satellites stay in orbit around Earth is because of two factors. Velocity and the gravitational pull between the satellite and the Earth.
What is the source of gravitational pull on the planets?
The gravitational pull on all the planets are artificial satellites because the satellites orbit all the planets!
How do forces affect the motion of satellites?
because the gravitational pull which is a force moves the satellites
Does escape velocity depend upon height from which it is projected?
Yes, it would. That's one reason why some artificial satellites were tossed into orbit after being carried up aboard the space shuttle. The reason is because escape velocity from Earth depends on Earth's gravity, which in turn depends on the distance from the Earth's center. The higher you go, the farther you are from the center of the planet, the less gravitational force there is between you and the Earth, and the smaller the escape velocity thus becomes.
Why do planets and satellites orbit the sun?
Planets and satellites orbit the sun due to the gravitational pull of the sun. This gravitational force keeps them in their respective orbits as they move through space. The balance between the inertia of the planets/satellites and the gravitational force of the sun results in stable orbits.
Why don't satellites get pulled towards the Earth's surface?
Satellites remain in orbit around the Earth due to a balance between the gravitational pull of the Earth and the satellite's velocity. The satellite's forward velocity allows it to continue moving tangentially to the Earth's surface, preventing it from being pulled towards the surface. This balance enables satellites to maintain their orbit without falling back to Earth.
What is the difference between escape velocity and orbital velocity?
Escape velocity is the velocity that an object needs in order to reach infinite distance, wherein the force will equal to zero. Orbital velocity is the velocity of an object so it can stay in orbit.
The more massive is an object and the smaller is its radius the greater or smaller is the escape velocity from it?
For two bodies with equal radius, the more massive has the greater escape velocity. For two bodies with equal mass, the one with smaller radius has the greater escape velocity. Both conditions listed in the question indicate greaterescape velocity.
How does terminal velocity involve balanced forces?
Terminal velocity is an example of balanced forced because the gravitational forces and the air resistance balance each other.
Why doesn't gravity pull the artificial satellites to Earth?
Gravity pulls the satellites but the orbiting satellites don't fall down towards earth because the speed with which they move balances the gravitational force i.e. Centripetal force = Gravitational force.
Why is the earths orbital velocity fastest at perihelion?
the suns gravitational pull is strongest because the earth is at its closest point to the sun.
What are ring satellites?
Ring satellites are small moons that orbit within the rings of a larger planet, such as Saturn. These moons help shape and maintain the structure of the rings through their gravitational interactions. Some well-known examples of ring satellites include Pan and Daphnis within Saturn's rings.
