- #1
noexit1982
- 1
- 0
If an object moving at a constant speed be launched into orbit? Irregardless of what that speed is and time not being a factor.
Actually, since the force of gravity is inversely proportional to the distance r between the center of the Earth and the object, and since the density of the atmosphere also decreases as the distance from Earth increases, a decreasing force will propel an object at a constant speed.A constant speed requires a constant force to push the object. However, gravity is pulling the object down at a constant acceleration of 9.8m/s^2, and of course air resistance.
That's the speed an object must have at (or very close to) the surface of the earth in order to escape Earth's gravitational pull, assuming that no force other than gravity (i.e. no air resistance, no propulsion) acts on the object after it has reached that speed.The minimum speed to get an object out of the Earth's atmosphere is around 11km/s, according to 0.5mv^2 = GmM/R.
Constant motion refers to an object moving at a steady rate without any change in its speed or direction.
In theory, yes. However, in reality, there will always be some external forces acting on the object that may cause it to slow down or change direction.
Uniform motion refers to an object moving at a constant speed in a straight line, while constant motion can include changes in direction as long as the speed remains constant.
The equation for calculating constant motion is velocity = distance/time.
No, because acceleration involves a change in speed or direction, which would break the condition of constant motion.