Let's consider Newton's second law to solve this problem:

` ` `F = ma`

Now, let's substitute our values for mass and force:

`16.8 t = 45.0*a`

Solving for acceleration (and simplifying the fraction):

`a = 28/75t `

Now, let's consider that acceleration is a function of time. Also, remember that velocity will be the antiderivative of acceleration. So, let's solve for velocity:

`v(t) = int_0^t 28/75tau d tau`

Solving the integral:

`v(t) = 28/75 t^2/2 + v_0 = 14/75 t^2 + v_0`

To continue, we'll need to find that initial velocity. Thankfully the...

(The entire section contains 260 words.)

## Unlock This Answer Now

Start your **48-hour free trial** to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Already a member? Log in here.