and 
if 
, 
, and 
.
Q68: A path is parametrized by <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg"
Q69: For the parametrization <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg" alt="For the
Q70: The curve <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg" alt="The curve
Q71: Find <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg" alt="Find ,
Q72: Parameterize the circle of radius <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg"
Q74: The path of a particle satisfies <img
Q75: Consider the helix <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg" alt="Consider the
Q76: A particle has acceleration <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg" alt="A
Q77: Find the arc length parametrization of the
Q78: Consider the helix <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5596/.jpg" alt="Consider the