# An object's two dimensional velocity is given by #v(t) = ( 3t^2 - 5t , t )#. What is the object's rate and direction of acceleration at #t=2 #?

##### 1 Answer

Jul 3, 2016

#### Answer:

#### Explanation:

I'm guessing they're using normal convention replaced by brackets.

So, in vectorial form,

Acceleration is the time derivative of velocity, so you go that.

I'm sure you know differentiation, hence we'll get acceleration

We need to find acceleration at time

In the end, you'll get why the answer is as given in the box.