A particle's position is given by  z(t) = −(7.30 m/s2)t2  for  t ≥ 0.  (Express your answer in vector form.) (a) Find the particle's velocity at  t = 2.50 s  and  t = 3.25 s. (b) What is the particle's average velocity during the time interval from  t = 2.50 s  to  t = 3.25 s?

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Chapter1: Units, Trigonometry. And Vectors
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A particle's position is given by 
z(t) = −(7.30 m/s2)t2
 for 
t ≥ 0.
 (Express your answer in vector form.)
(a) Find the particle's velocity at 
t = 2.50 s
 and 
t = 3.25 s.

(b) What is the particle's average velocity during the time interval from 
t = 2.50 s
 to 
t = 3.25 s?

 
 
 
 
 
  
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