A force, or several forces that don't add up to zero, acting on the object.
a change in a objects velocity is caused by a unbalanced force :)
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.
This is velocity.
velocity
To acceleration (change in velocity).
a change in a objects velocity is caused by a unbalanced force :)
Velocity is a change in an object's motion OR direction of motion.
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.
This is velocity.
That's simply called a change in velocity. On the other hand, the rate of change in velocity - how quickly velocity changes - is called acceleration.
momentum is caused by inertia. all objects have inertia, which means if they are moving at a certain velocity or are at rest they will continue to move at that velocity or remain at rest unless acted on by a force. Objects of more mass have greater inertia, so the amount of momentum is equal to the product of an objects mass and the magnitude of its velocity.
velocity
force
either resistance or inertia
To acceleration (change in velocity).
Gravity exerts a force on objects; such a force (if not counteracted by some other force) will cause an acceleration, according to Newton's Second Law. The amount of the acceleration can be calculated as a = F/m.
Objects that do not speed up, slow down, or change it's direction unless they are pulled in some kind of way can change velocity.