Studied by 5 people
system
the collection of objects that are of interest
closed system
a system in which masses do not enter or leave.
Isolated system
a system in which no net external forces act on the object within it.
momentum
the quantity of momentum. momentum is the product of mass and velocity, and because velocity is a vector, mass is also a vector
=elapsed time- the definition of acceleration/change in time
the change in momentum
Fnet
the net external forcer
Gravitational force (Fg)
Attractive force between two objects with mass.
Gravitational field(g)
a model explaining the influence object extends to produce a force on other objects.
Fg=G m1/m2 r^2
fg is gravitational force, G is the gravitational constant, m1 and m2 are point masses, r is the distance.
g=Fg/m2=Gm1/r2
g is the gravitational field strength
Resistance forces that can cause an
object to stop.= friction, air resistance, gravitation.
friction, air resistance, gravitation
D=r/t is the scalar version of?
v= s/t
Formula for 1 newton of force.
1N=1kgxm/s2
Double the mass=
half the acceleration.
Double the force only=
Double the acceleration
Double the acceleration=
double the force
Note 
Flashcard (21)