ch15-p072 - 72. (a) The textbook notes (in the discussion...

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72. (a) The textbook notes (in the discussion immediately after Eq. 15-7) that the acceleration amplitude is a m = ω 2 x m , where is the angular frequency ( = 2 π f since there are 2 π radians in one cycle). Therefore, in this circumstance, we obtain = 2 1000 0.00040 =1.6 10 . 2 42 a m π Hz m m / s af bg × (b) Similarly, in the discussion after Eq. 15-6, we find v m = x m so that = 2 1000 0.00040 = 2.5 . v m π Hz m m / s ch (c) From Eq. 15-8, we have (in absolute value) a = 2 1000 0.00020 = 7.9 10 . 2 32 π Hz m m / s b g c h b
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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