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# HW-CH2 - HW-CH2 9th edition CH2 Problems 14 17 56 101 8th...

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HW-CH2 9th edition CH2 Problems: 14, 17, 56, 101 8th edition CH2 Problems: 16, 17, 54, 112 14. An electron moving along the x axis has a position given by x = 16 te ° t m, where t is in seconds. How far is the electron from the origin when it momentarily stops? 17. The position of a particle moving along the x axis is given in centimeters by x = 9 : 75+1 : 50 t 3 , where t is in seconds. Calculate (a) the average velocity during the time interval t = 2 : 00 s to t = 3 : 00 s ; (b) the instantaneous velocity at t = 2 : 00 s ; (c) the instantaneous velocity at t = 3 : 00 s ; (d) the instantaneous velocity at t = 2 : 50 s ; and (e) the instantaneous velocity when the particle is midway between its positions at t = 2 : 00 s and t = 3 : 00 s . (f) Graph x versus t and indicate your answers graphically. 56. Figure 2-33 shows the speed
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