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The Position Vector of a Particle Is R(t)

Question 72

Multiple Choice

The position vector of a particle is r(t) . Find the requested vector.
-The acceleration at t = 1 for r(t) = The position vector of a particle is r(t) . Find the requested vector. -The acceleration at t = 1 for r(t) = i + 2ln j + k A) a(1) = 20i + 2j + 12k B) a(1) = 20i + j - 12k C) a(1) = 20i - 2j - 12k D) a(1) = 20i + j + 12k i + 2ln The position vector of a particle is r(t) . Find the requested vector. -The acceleration at t = 1 for r(t) = i + 2ln j + k A) a(1) = 20i + 2j + 12k B) a(1) = 20i + j - 12k C) a(1) = 20i - 2j - 12k D) a(1) = 20i + j + 12k j + The position vector of a particle is r(t) . Find the requested vector. -The acceleration at t = 1 for r(t) = i + 2ln j + k A) a(1) = 20i + 2j + 12k B) a(1) = 20i + j - 12k C) a(1) = 20i - 2j - 12k D) a(1) = 20i + j + 12k k


A) a(1) = 20i + 2j + 12k
B) a(1) = 20i + The position vector of a particle is r(t) . Find the requested vector. -The acceleration at t = 1 for r(t) = i + 2ln j + k A) a(1) = 20i + 2j + 12k B) a(1) = 20i + j - 12k C) a(1) = 20i - 2j - 12k D) a(1) = 20i + j + 12k j - 12k
C) a(1) = 20i - 2j - 12k
D) a(1) = 20i + The position vector of a particle is r(t) . Find the requested vector. -The acceleration at t = 1 for r(t) = i + 2ln j + k A) a(1) = 20i + 2j + 12k B) a(1) = 20i + j - 12k C) a(1) = 20i - 2j - 12k D) a(1) = 20i + j + 12k j + 12k

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