# An object's two dimensional velocity is given by #v(t) = ( t^2 +2 , cospit - 3t )#. What is the object's rate and direction of acceleration at #t=1 #?

##### 1 Answer

Oct 27, 2017

Rate of accelaration is

#### Explanation:

Here velocity

accelaration is

or

and at

This shows that

its magnitude is

and direction is given by