Kinematics and Dynamics Flashcards
A Newton is equivalent to _
(kg x m)/s^2
The magnitude of the gravitational force between two objects is _ (formula).
Fg = (Gm1m2)/r^2
What is the mass of a proton
1.67E-27 kg
What is the mass of an electron
9.11E-31 kg
What is the universal gravitational constant
6.67E-11 (N x m^2)/kg^2
Static friction vs kinetic friction
static=between a stationary object and the surface it rests
kinetic= between a sliding object and the surface.
Do wheels experience kinetic friction?
no they are not sliding
Kinetic friction (Fk) = (formula)
Fk = coefficient of friction x N
What equation relates weight and mass
Fg=mg
Acceleration equation
a = v/t
what is instantaneous acceleration
the average acceleration as t approaches 0
What is Newtons first law
F=ma=0, inertia, a body either at rest or in motion with constant velocity will remain that way unless a net force acts upon it.
What is Newtons second law
F=ma, and object of mass m will accelerate when the vector sum of the forces results in some nonzero resultant force vector
What is Newtons third law
Fab = -Fba; to every action, there is an equal and opposite reaction
linear motion describes _ and is fully described by what equations
constant acceleration v= v0 + at x= v0t + (at^2)/2 V^2 = V0^2 + 2ax x=vt
