# EQ2 - r 2 dm = I CM M d 2 K = 1 2 Iw 2 ρ τ = ρ r r F t =...

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PHYS 121 Summer 1, 2011 Equations for Test #2 x t ( ) v t ( ) = dx dt a t ( ) = dv dt a t ( ) v t ( ) = v 0 + a t ' ( ) 0 t dt ' x t ( ) = x 0 + v t ' ( ) 0 t dt ' x = v 0 t x = 1 2 at 2 . v = at , v f 2 = v i 2 + 2 a D x s = qr , v = wr , a cp = w 2 r , T = 2 p w w = dq dt , a = dw dt . a t = a r ρ F = m r a F G = mg , f s m s n , f k = m k n , F D D v 2 = 1 2 d AC D v 2 , F sp = - k D x ρ p = m r v , r J = r F t ( ) t i t f dt , D r p = r J , r p i = r p f ; K = 1 2 mv 2 , U G = mgy , U S = 1 2 k D x 2 K + U = const ., W = r F d r r i f , P = dW dt D K = W , D U = - W , F x = - dU dx x CM = 1 m i i m i x i i = 1 M x dm ; I = r i 2 m i =
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Unformatted text preview: r 2 dm = I CM + M d 2 ; K = 1 2 Iw 2 ρ τ = ρ r r F , t = r F sin f , t = Ia , W = t dq q 1 q 2 g 9.8 m s 2 1 m s = 2.24 mph ; 1 in = 2.54 cm ; 1 hp = 746 W...
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