Velocity
When an object is still it has no momentum. That is, the momentum is zero.
They are the exact same. If an object is standing still, it is in motion. Everything in the world is in motion. Not because of the earth moving, it is because particles in all objects are moving.
Speed is always the speed relative to something else.If you see something standing still, that just means that it's movingwith exactly the same speed and direction that you are. The object that'sstanding still could be the book in your lap in a seat on a passenger jetflying at 500 miles per hour, relative to the ground, to visit your grandmother.And don't forget that the airplane, you, and the book, are all spinning alongwith the Earth, while the Earth and all of those things revolve around the sun.There's no such thing as really standing still.
If there are any forces acting on a stationary object, then they must be balanced, or it would no longer remain stationary.It is also possible that the object is already moving. In the forces are balanced on a moving object, the object would continue moving at the same speed and direction (velocity) that it already had.
a standing wave.
Velocity. When an object is standing still at position p, the velocity dp/dt = 0 is zero.
Its speed, velocity, and acceleration are all zero.
When an object is still it has no momentum. That is, the momentum is zero.
I suppose the forces may crush the object, but they won't move it.
They are the exact same. If an object is standing still, it is in motion. Everything in the world is in motion. Not because of the earth moving, it is because particles in all objects are moving.
They may crush it, but they won't move it.
Speed is always the speed relative to something else.If you see something standing still, that just means that it's movingwith exactly the same speed and direction that you are. The object that'sstanding still could be the book in your lap in a seat on a passenger jetflying at 500 miles per hour, relative to the ground, to visit your grandmother.And don't forget that the airplane, you, and the book, are all spinning alongwith the Earth, while the Earth and all of those things revolve around the sun.There's no such thing as really standing still.
No you have to be dead as when you are alive your heart is always moving.
A calm object could be a smooth river flowing gently, a serene mountain standing still, or a tranquil beach with gentle waves lapping at the shore.
-- kinetic energy -- momentum -- velocity -- speed -- Lorentz contraction -- time dilation -- v2/c2 -- probability of arrival of a bus within the next 5 minutes
By comparing the object with a stationary object. For instance, we are standing apparently still on earth, yet by comparing our position against the sun and stars, we have proof that the earth is actually moving.
Stonehenge in England is still standing.