The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = t5i + 5ln
j + 
k
A. a(1) = 20i - 5j - 2k
B. a(1) = 20i + 
j + 2k
C. a(1) = 20i + 
j - 2k
D. a(1) = 20i + 5j + 2k
Answer: D
Mathematics
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x
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MonthWhich month in 2010 had the lowest sales?
A. Month 2 B. Month 7 C. Month 12 D. Month 3
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