Physics 1 - Motion and Force Flashcards
displacement, velocity, force, acceleration are all:
vectors
speed= ?/?
distance/time
velocity= ?/?
displacement/time
acceleration= ?/?
velocity/time
if velocity is constant
no acceleration
calculating change in distance equation?
Δx= (Vo*t)+1/2at2
calculating change in velocity equation?
Δv=at
calculating final velocity equation?
Vf2=Vo2+2a(Δx)
average velocity?
Vavg=1/2(v+vo)
inertia
resistance to changes in motion
spring equation?
F=-kΔxwhere k is spring constant
how do you calculate effeciency?
efficency=(load x load distance)/ (effort x effort distance)
what is the equation for centripetal force?
F=mv2/r
what are the units for power?
Watts or Joules/sec
what is cos(60?
.5
how to calculate coefficient of friction?
frictional force/normal force
what happens to acceleration of an object as its mass increases?
the acceleration would DECREASE
what is the equation for mechanical work done by an ELASTIC force?
work=fd/2
