Question

Find the particle's velocity and acceleration vectors. Then find the particle's speed and direction at the given value of t. Write the particle's velocity at that time as the product of its speed and direction

Answer 1

r(t) = (1+t)i +t^2/radical j t^3/3k t=1

Answer 2

@experimentX

Answer 3

@hartnn

Answer 4

CRUD forgot to do my a(t) faul!!

Answer 5

oh wait I see it... it's 2/radical 2 j + 2tk

Answer 6

how do you put this up
\[ r(t) = (1+t) \hat i +\sqrt 2 \hat j + {t^3\over 3} \hat k \]

Answer 7

also try learning latex
http://www.codecogs.com/latex/eqneditor.php

Answer 8

see attachment... I wrote it on paper