Newton's Laws Definitions Flashcards
free-body diagram
diagram showing a body in isolation with all forces acting on it drawn as arrows
translational equilibrium
sum of all acting forces is zero
no resultant force
work done
the product of the force and the distance travelled in the direction of the force
energy
something that can be stored and which can be used in order to do things
power
rate at which work is being done or energy is being dissipated
Newton’s first law
particle moves with a constant velocity (which may be zero) when no forces act on it
Newton’s second law
net force on a body is the rate of change of the body’s momentum
Newton’s third law
when body A exerts a force on body B, body B will exert an equal but opposite force on body A
displacement
change in position
initial velocity
velocity of an object before application of force
final velocity
velocity attained by a body after reaching certain distance or time interval
acceleration
rate of change in velocity
friction equations
fd = udR fs = usR
work equation
W = FscosTHETA
condition required for usage of SUVAT
constant acceleration
