CENTER OF MASS, MOMENTUM, IMPULSE, AND COLLISION Flashcards
inertia in
motion
Momentum
signifies how easy or how difficult it is to change the
state of motion of a moving object.
Momentum
Momentum formula
𝑝=𝑚v
Change in
momentum
Impulse
In order to change an object’s momentum, one must
exert a force on the object over a certain period of time.
Impulse
Impulse formula
𝐽=Σ𝐹𝑡
2 bodies exert
equal forces
Collisions
Equal forces but
different momentum
Collisions
When two bodies collide head-on, their velocities after the impact is a constant ratio to their velocities of approach before impact.
Coefficient of Restitution
point where the mass of the
object is concentrated.
center of mass
arithmetic mean position of
all points in the figure
geometric center
The center of mass is the same as the
center of gravity