Multiple Choice
Find the velocity of a particle moving along the curve r(t) = (-8 + t3) i + 4t j - t2 k at t = 1.
A) 3i + 4j - 2k
B) 6i - 2j
C) 3i + 4j + 2k
D) 0
E) 3i - 4j - 2k
Correct Answer:

Verified
Correct Answer:
Verified
Q30: If v = 2i and a =
Q31: Find parametric equations for <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Find
Q32: Find the unit tangent and unit normal
Q33: Let r(t) = (t<sup>2</sup> + 9)i +
Q34: Let <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Let .
Q36: r(t) = (-1 + t<sup>3</sup>)i -
Q37: Find the radius of curvature for
Q38: Find the unit tangent and unit normal
Q39: Find the curvature <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Find the
Q40: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="If ,