1. 3/5 points | Previous Answers Tipler6 14 P029 The position of a particle in i

Question

1. 3/5 points | Previous Answers Tipler6 14 P029 The position of a particle in is given by x = (2) cos 9nt, where t is in seconds. (a) What is the frequency? 4.5 (b) What is the period? (c) What is the amplitude of the particle's motion? (d) what is the first time after t = 0 that the partide is at its equilibnum position? In what direction is it moving at that time? in the negative direction O n the positive direction The position of the partide is given by x = Acos(at + ). eBook Submit Answer Save Progress Practice Another Version 2. -13 points Tipler6 14 P032 The position of a particle is given in cm by x - (2) cos 4nt, where t is in seconds (a) Find the maximum speed. m/s (b) Find the maximum acceleration of the partide. m/s2 (c) What is the first time that the particle is at x - 0 and moving in the +x direction?

Explanation / Answer

1. b) T= 1/f = 1/4.5 = 0.222 sec  

2. a v = 8pi/100 = 0.25 m/s

b) a= 32(pi)^2/100 = 3.16 m/s2
c) 4t=3/2
t= 0.375 sec

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