A non-zero net force on the body.
To overcome the objects inertia
Speed and direction of motion are needed to determine velocity.
Velocity
force
A Force.
To overcome the objects inertia
To overcome the objects inertia
To overcome the objects inertia
Speed and direction of motion are needed to determine velocity.
If an object's velocity changes -- if its speed increases or decreases or if its direction changes -- that means it has accelerated. For an object to accelerate, the sum of the forces acting upon it must be non-zero. So, in other words, forcechanges an object's velocity.
Velocity
Same speed, same direction.
velocity
force
force
force
A Force.