Homework Help: Math

Posted by Devin on Tuesday, January 22, 2013 at 8:13am.

The velocity of a body A is given by v(t) = 2t^i + t
3^j. The body starts from rest at time t = 0 and
position s(0) = 2^i 10^j.
At what time, t, does the body cross the X axis?
What is the average velocity of the body for the time interval, t = 0 and the time that it crosses the
X axis?
What is the average acceleration of the body for the time interval, t = 0 and the time that it crosses
the X axis?

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