Question

position vector of a particle moving in a plane is given by r=
$3{t}^{2} i \: + { t}^{3} j \:$
the ratio of tangential and centripetal acceleration at t= 1 sec

Answer 1

I can't answer that question. Because I don't understand. plz rewrite your question and I'll answer it for you

Answer 2

ratio is 1
explanation is belo