Physics Flashcards
Newton’s second law
The sum of the forces on an object is equal to the mass of that object times its acceleration
What happens when the sum of the forces on an object is 0?
The acceleration is also zero.
An object is said to be in ________when the sum of the forces acting upon it is equal to zero.
Translational equilibrium.
When an object is moving in translational equilibrium, it can either be at ___ or moving with a _____ _____
rest
constant velocity
When an object is at rest, it is said to be in
static equilibrium
When an object moves with a constant velocity, it is said to be in
dynamic equilibrium
Tension
The forces from a tight string, rope, or chain. This force is directed away from the object to which the string, rope, or chain is anchored.
T=
mg
ΣF=
0
Translational motion
Motion from one point to another which does not involve repeatedly passing the same point in space.
Rotational motion
Motion around a central axis such that an object could repeatedly pass the same point in space relative to that axis.
the ___ of ___ is in the center of the circle
Axis of rotation
Whatever point in space is at the ____ of the rotational motion is what we call the ____ of___-
Center
axis of rotation
Translational and rotational ____ mutually exclusive
Are not
To cause rotational acceleration, a force must be
perpendicular
