The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = ln(t3 - 6t2 + 1)i - 
j - 1cos(t)k
A. v(0) = 
j
B. v(0) = 1i - 
j
C. v(0) = 1i - 
j + 1k
D. v(0) = - 
j
Answer: D
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A. 2 units down
B. 
units to the right
C. 2 units up
D. 
units to the left
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A. Conditional, {-3} B. Conditional, {1} C. Inconsistent, ? D. Identity, {all real numbers}
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Fill in the blank(s) with the appropriate word(s).
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