An object's velocity is it's speed plus direction.
example: 55mph south
Hope this helps:)
velocity
Speed is a scalar, velocity is a vector. Two objects moving at the same speed but in opposite directions will have opposite velocities. If the velocity of the elevator going up is v, the velocity of the elevator going down will be -v.
When dropped the mass of an object does not affect the rate at which it falls. The size and shape may affect the wind resistance which affects falling velocity but heavier objects will not fall faster than lighter objects with all other variables constant.
Inertia. Inertia applies to both increases and decreases in velocity.
To find the magnitude of momentum you use the formula: p=mv So, if an object has a mass (and if it exists then it would), and if it is moving (has a velocity), then yes, it has momentum.
To determine the relative velocity between two objects, you can subtract the velocity of one object from the velocity of the other object. This will give you the relative velocity between the two objects.
no
A change in an objects velocity is called acceleration. Velocity is defined as an objects speed of travel AND its direction of travel. Acceleration can change only an objects speed, only its direction or both. If there is no acceleration acting on the object, then the velocity remains constant.
Objects with greater mass resist changes in velocity more than light objects. Additionally, objects with higher inertia or momentum also resist changes in velocity. Friction and air resistance can also act to resist changes in velocity.
VELOCITY
mass. Momentum is the product of an object's mass and its velocity, so if two objects have the same velocity and mass, then their momentum will be the same.
Speed only tells how fast something is going, while velocity tells speed and direction.
Yes, an object's momentum is directly proportional to its velocity. Momentum is defined as the product of an object's mass and velocity, so as velocity increases, momentum increases proportionally.
velocity
When you have calculated or measured it.
Velocity
An object's mass and its velocity define the object's MOMENTUM.