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Author Question: A driver, traveling at 22. m/s, slows down her 1500. kg car to stop for a red light. What work is ... (Read 148 times)

renzo156

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on: Jul 27, 2018
A driver, traveling at 22. m/s, slows down her 1500. kg car to stop for a red light. What work is done by the friction force against the wheels?
 
  What will be an ideal response?

Question 2

SHM may be written y = A sin( t +  ). What is the value of , the phase constant, when:
 
  (a) the initial displacement is zero?
  (b) the initial displacement is A?
  (c) the initial velocity is zero?


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ApricotDream

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Reply #1 on: Jul 27, 2018
Answer to Question 1

3.6  105 Joules

Answer to Question 2

(a)  = 0
(b)  =
(c)  = + or -


renzo156

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

xiazhe

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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