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The velocity of an object that leaves the ground is the same as the velocity when it hits the ground on the condition that it is only acted on by gravity, that it lands on an equivalent surface to one that it left in terms of potential energy (altitude]. In a closed system energy must be conserved so an object that leaves the ground with a certain quantity of kinetic energy must hit the ground with the same quantity of kinetic energy as gravity its self which also means that given the surface it lands on is the same in potential energy as the surface it left, the object must have the same velocity as E mv^2/2. Of course the object in real life is subject to friction and various contributing factors so it is only true in an ideal case that the object returns to the ground with the same velocity that it left the ground.
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Will the object that is dropped hit the ground before an object that is that it is thrown horizontally from the same height?
No. They both hit the ground at the same time, because the VERTICAL component of velocity in both cases is the same.
Is an object that is dropped will hit the ground before an object that is thrown horizontally from the same height?
No. They both hit the ground at the same time. This is because the VERTICAL component of velocity in both cases is the same.
The momentum of an object is in the same direction as what?
The velocity of the object.
If an object is moving at a constant velocity and you want to change it's momentum you would change it's?
The answer is velocity.
What has a velocity and acceleration vector in the same direction?
Any falling object has acceleration and velocity vectors in the same direction.
Will the object that is dropped hit the ground before an object that is that it is thrown horizontally from the same height?
No. They both hit the ground at the same time, because the VERTICAL component of velocity in both cases is the same.
Is an object that is dropped will hit the ground before an object that is thrown horizontally from the same height?
No. They both hit the ground at the same time. This is because the VERTICAL component of velocity in both cases is the same.
The momentum of an object is in the same direction as what?
The velocity of the object.
How is speed and velocity the same?
No, they are not the same! Velocity involves the speed and the direction of the moving object...
When the acceleration of an object is zero what is the velocity at the same time?
As long as acceleration is zero, the object's velocity is constant.
If an object is moving at a constant velocity and you want to change it's momentum you would change it's?
The answer is velocity.
Can acceleration and velocity be the same?
No. Velocity is the change of location and accelarion is any change that occurs to the velocity of an object.
What kind of speed does a moving object have when the velocity stays the same?
same speed , coz velocity is constant velocity consists of speed and direction...
What has a velocity and acceleration vector in the same direction?
Any falling object has acceleration and velocity vectors in the same direction.
Two object with the same velocity must be moving in the same?
direction
Can an object have a constant speed and velocity at the same time?
Yes. An object moving in a straight line at constant speed has constant velocity.
What is velocity the same as?
Velocity is a relative term. If we call that the object is moving and in particular direction, then there must be another object present, from witch it is moving away. and we can not say, witch object is moving away. If all object maintain the same position in respect to each other then, we will call them to have zero velocity.
