mt1sol_11

# mt1sol_11 - Phy 9A-C, Midterm 1 Solutions, Page 1 of 1...

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Unformatted text preview: Phy 9A-C, Midterm 1 Solutions, Page 1 of 1 4/22/11 ACME ™ dynomite v √ ø a √ F N mg f F N f mg ACME ™ dynomite v a √ F N mg f F N f mg Physics 9A-C Midterm 1 Solutions Cole [1]  a) kg·m/s 2 ,  b) velocity,  c) angular speed,  d) never,  e)  a√ + b√ + c√ =  0,  f) -sin oe  î  + cos oe  ∆ ,    g) greatest at the right edge,   h) -   GMm r 2 ˆ r ,   i) 0,   j)  acceleration opposite to  v√  . [2] a) (5 pts) The initial velocity is at  t  = 0, õ    v = F m ω cos ω t ( ) t = = F m ω cos0 = F m ω b)  (5 pts)  F = ma  where     a = dv dt = d dt F m ω cos ω t ( ) = − F m sin ω t   õ  F = - Fø sin ∑ t. c) (5 pts)    dx = dx dt dt = vdt   Integrate using  xø =  0:     x ∫ dx = F m ω t ∫ cos ω t dt  õ     x = F m ω...
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## This note was uploaded on 09/28/2011 for the course PHY 9A taught by Professor Svoboda during the Spring '08 term at UC Davis.

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