the position of a particular particle as a function of time is given by r⃗ =(9.60t i + 8.85j + 1.00t^2 k) . determine tge particles average velocityand acceleration

1 answer

average over what interval?
You know that
v = 9.6 i + 2.00t k
a = 2.00 k
Once you decide on your interval [a,b] for t, then the average
velocity is, as always, (v(b)-v(a))/(b-a).
The acceleration is, of course, constant.