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Centripetal Physics

Centripetal force + gravitational law

TermDefinition
changing acceleration bc... changing direction
centripetal force is... the Fnet between Fn and Fg
centripetal force points towards... the center
central pointing acceleration caused by... central pointing Fnet
magnitude of acceleration in CONSTANT but... DIRECTION is changing
Fc= m x ac
Direction of velocity is changing constantly as... it moves around the circle
velocity is always... PERPENDICULAR to arc (TANGENTIAL to curve)
ac= V^2 (tan) / r
TANGENTIAL velocity V= displacement / time
CIRCLE V= 2 pi r (circumference) / T (period)
Universal Gravitation Law ALL mass is attracted to all other mass The strength of the gravitational force is DIRECTLY proportional to both MASSES and INVERSELY proportional to the DISTANCE between their centers
Newton's 3rd Law For every action, there is an equal and opposite reaction force
Newton's 2nd Law a= Fnet / mass a is DIRECTLY proportional to Fnet and INVERSELY proportional to mass Fnet is DIRECTLY proportional to mass
Newton's 1st Law An object w constant position or constant velocity will remain the same unless acted upon by a net external force
Equation of FG | FG |= G m1 x m2 / r^2
G= 6.67 x 10^-11 Nm^2 / kg^2 (universal gravitation constant)
Created by: daisy98
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