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What is velocity parallel to Earth's surface?
The velocity parallel to Earth's surface depends on the frame of reference. Relative to Earth's surface, the velocity is zero if an object is at rest, and it varies depending on the direction and speed of the object's movement. If we consider the rotation of the Earth, objects on the surface have an eastward velocity due to the planet's rotation.
A body falling freely from a hight towards the earth moves with uniform?
It moves with uniform acceleration,because it has a constant force acting on it (its weight).
A body falling freely from a height towared the earth moves with uniform?
... accelerates at approx 9.81 metres per second squared and experiences weightlessness. Friction with the air prevents continuous acceleration and the falling body reaches a maximum velocity called the terminal velocity.
Is it possible for a body moving with a uniform speed to have acceleration?
Yes. This is exactly the case when an object is thrown on the surface of the Earth. Consider an (American) football thrown in the air. This ball has the force of gravity accelerating it downward, but there is no force acting on it horizontally, thus there is no acceleration horizontally. As a result, since acceleration is the rate of change in velocity, the velocity in the vertical direction is changing, whereas the velocity in the horizontal direction is not.
Is the motion of earth a uniform circular motion?
yes the motion of earth around the sun is uniform
What are the three major items of Aristotle that Galileo nullified?
1. an object can move with uniform velocity forever. 2.all objects fall together 3. earth goes around the sun
How can you have acceleration without a change in velocity?
Turning is acceleration, and it doesn't affect your speed. One example of this is a satellite in orbit, it is always accelerating towards the Earth due to gravity, but the speed doesn't change because it's just turning in a circle around the Earth.
What is the velocity of earth in meters per second?
Earth's velocity through space is 297,800 m/s
What is the direction of the acceleration vector of a person on spinning earth?
The acceleration vector of a person on spinning Earth points towards the center of Earth due to gravity. Additionally, this acceleration vector is perpendicular to the direction of the person's velocity as they move along Earth's surface.
At what angular velocity would the earth have to rotate about its axis for a body at the equator to feel no weight?
You can calculate it yourself, with the formula for acceleration in uniform circular motion. The centripetal acceleration, with circular motion, is v2 / r (velocity squared divided by the radius). Since the Earth's gravitation is about 9.8 meters per second square, solve the equation v2 / r = 9.8, for variable v. r (radius, of the Earth) should be converted to meters. The velocity will be in meters per second.Note that this exercise assumes the Earth is rigid. In practice, if Earth really rotated that fast, it would flatten out a lot, and in fact be torn apart.You can calculate it yourself, with the formula for acceleration in uniform circular motion. The centripetal acceleration, with circular motion, is v2 / r (velocity squared divided by the radius). Since the Earth's gravitation is about 9.8 meters per second square, solve the equation v2 / r = 9.8, for variable v. r (radius, of the Earth) should be converted to meters. The velocity will be in meters per second.Note that this exercise assumes the Earth is rigid. In practice, if Earth really rotated that fast, it would flatten out a lot, and in fact be torn apart.You can calculate it yourself, with the formula for acceleration in uniform circular motion. The centripetal acceleration, with circular motion, is v2 / r (velocity squared divided by the radius). Since the Earth's gravitation is about 9.8 meters per second square, solve the equation v2 / r = 9.8, for variable v. r (radius, of the Earth) should be converted to meters. The velocity will be in meters per second.Note that this exercise assumes the Earth is rigid. In practice, if Earth really rotated that fast, it would flatten out a lot, and in fact be torn apart.You can calculate it yourself, with the formula for acceleration in uniform circular motion. The centripetal acceleration, with circular motion, is v2 / r (velocity squared divided by the radius). Since the Earth's gravitation is about 9.8 meters per second square, solve the equation v2 / r = 9.8, for variable v. r (radius, of the Earth) should be converted to meters. The velocity will be in meters per second.Note that this exercise assumes the Earth is rigid. In practice, if Earth really rotated that fast, it would flatten out a lot, and in fact be torn apart.
The tangential velocity of an Earth satellite is its velocity?
The tangential velocity of an Earth satellite is its velocity perpendicular to the radius vector pointing towards the center of the Earth. It represents the speed at which the satellite is moving along its orbital path. This velocity is crucial for maintaining the satellite's orbit and is calculated using the satellite's distance from the center of the Earth and gravitational force acting upon it.
Is the escape velocity from the center of the earth different from the escape velocity from Earth's orbit?
Yes, very much so.
