Exercise 9.20 Constant Part A A compact disc (CD) stores music in a coded pattern of...

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Answer 1

Answer #1

A) use, w = v/r

= 1.25/(25*10^-3)

= 50 rad/s

B) w = v/r

= 1.25/(58*10^-3)

= 21.6 rad/s

C) L = v*t

= 1.25*74*60

= 5550 m

= 5.55 km

D) alfa = (w2 - w1)/t

= (21.6 - 50)/(74*60)

= -0.00640 rad/s^2

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Answer 2

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