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Motion and Forces Equations (Machines (Mechanical Advantage=Output…
Motion and Forces Equations
Motion
S=d/t; Speed=distance/time
t=d/s; time=distance/speed
a=vfinal-vinitial/t; acceleration=final velocity-initial velocity/time
Forces
f=ma; force=mass x acceleration
a=mf; acceleration=mass x force
m=f/a; mass=force/acceleration
p=mv;momentum=mass x velocity
Gravity, Friction, and Pressure
p=f/a; pressure=force/area
Work and Energy
w=fd; work=force x distance
ME=PE+KE; Mechanical Energy=Potential Energy + Kinetic Energy
GPE=mgh; Gravitational Potential Energy= mass x gravitational energy x height
Machines
Mechanical Advantage=Output Force/Input Force
Efficieny (%)=Output work/input work x 100
MA=F out/F in; Mechanical Advantage=Output Force/Input Force
IMA=R in/R out; Ideal Mechanical Advantage= Radius of Input/Radius of Output
IMA= d in/d out; Ideal Mechanical Advantage= distance from input force to fulcrum/ distance from output force to fulcrum