If an object is not accelerating, then one knows for sure that it is moving at a constant speed.
An object moving in a circular path at a constant speed is accelerating because its direction of motion is changing. The object is not speeding up or slowing down but is constantly changing its direction, which results in acceleration towards the center of the circle.
Velocity is directional, so if something is accelerating in the opposite direction from the one it is moving it, there will come a point where it has 0 velocity but still has accelerating. If you throw a ball at the ground and it bounces, for example.
Yes, a object can still be accelerating when the speed is zero, a classic example of which is throwing a ball straight up in the air, at the top of its trajectory it has an instantaneous velocity of zero while it is still accelerating towards the ground.
If you were taking distance measurements of a free falling object at one-second intervals, you would observe the object accelerating downward. Each measurement interval would show the object covering a greater distance than the previous interval due to the acceleration from gravity acting on the object.
If the object is moving upwards with a constant velocity, there is only one arrow in the diagram, and it points straight down, due to gravity. If it has a force pulling upward on it, there are two arrows, one up, due to the force, and one down, again, due to gravity.
An object moving in a circular path at a constant speed is accelerating because its direction of motion is changing. The object is not speeding up or slowing down but is constantly changing its direction, which results in acceleration towards the center of the circle.
No one knows for sure, but estimates place the size of the object at over 100km
No one knows the answer?!
No one knows for sure there are rumors of Star Wars Episode VII but no one knows for sure not even George Lucas he moslikly will do another trillogy but like i said no one knows
no-one knows for sure
No one knows for sure where it originated. On the other hand, no one knows for sure where any of the canonical gospels originated either.
No one is sure how he died. Several theories are out, but no one knows for sure.
That is why it remains a mystery. Nobody really knows. some people think it will be the year 2012 but no one knows for sure
I'm pretty sure no one knows for sure...
No one knows for sure. sorry.
No one knows for sure.
No one knows for sure.