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Formulas

# Formulas - Basic Formulae of Physics 1410 Kinematics r t =...

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Unformatted text preview: Basic Formulae of Physics 1410 Kinematics r ( t ) = x ( t ) i + y ( t ) j or = ( x ( t ) ;y ( t )) ; j r j = p x 2 + y 2 ; x = j r j cos &; y = j r j sin & (1) 4 r = r ( t 2 ) & r ( t 1 ) or = r f & r i ; 4 r = 4 x i + 4 y j (2) v avg = 4 r 4 t or = r ( t 2 ) & r ( t 1 ) t 2 & t 1 ; v avg = v avgx i + v avgy j (3) v avg = l trajec 4 t (4) v ( t ) = lim 4 t ! 4 r 4 t = d r ( t ) dt ; v ( t ) = v x ( t ) i + v y ( t ) j (5) a avg = 4 v 4 t or = v ( t 2 ) & v ( t 1 ) t 2 & t 1 ; a avg = a avgx i + a avgy j (6) a ( t ) = lim 4 t ! 4 v 4 t = d v ( t ) dt ; a ( t ) = a x ( t ) i + a y ( t ) j (7) r ( t ) = r + v t + a t 2 2 ; v ( t ) = v + a t 4 & = & ( t 2 ) & & ( t 1 ) : (8) ! avg = 4 & 4 t or = & ( t 2 ) & & ( t 1 ) t 2 & t 1 ; ! ( t ) = lim 4 t ! 4 & 4 t = d& ( t ) dt : (9) ¡ ( t ) = lim 4 t ! 4 ! 4 t = d! ( t ) dt = d 2 & ( t ) dt 2 : (10) & ( t ) = & + ! t + ¡t 2 2 ; ! ( t ) = ! + ¡t: (11) s = &r; V = !r; a & = ¡r; a c = V 2 r : (12) N ( t ) = & ( t ) 2 ¢ (13) T = 2 ¢ !...
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Formulas - Basic Formulae of Physics 1410 Kinematics r t =...

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