The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = t5i + 7 ln 
j + 
k
A. a(1) = 20i + 
j + 14k
B. a(1) = 20i + 
j + 14k
C. a(1) = 20i + 
j - 14k
D. a(1) = 20i - 
j - 14k
Answer: B
Mathematics
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÷ 
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