The position vector of a particle is r(t). Find the requested vector.The velocity at t = 1 for r(t) = (6 - 3t2)i + (7t + 4)j - e-5tk
A. v(1) = -6i + 7j - 5e-5k
B. v(1) = -6i + 7j + 5e-5k
C. v(1) = -3i +7j + 5e-5k
D. v(1) = 6i + 7j + 5e-5k
Answer: B
Mathematics
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