I really don't get this question

[weesieman]

Homework Statement

A supersonic jet flying at 160 m/s is being
accelerated uniformly at 23.7 m/s for 20 s.
What is its final velocity?
Answer in units of m/s

Homework Equations

V(final) = V(initial)^2 +2ad. Well that's what I tried using but we just started this topic and I am not sure at all.

The Attempt at a Solution

 

[Doc Al]

V(final) = V(initial)^2 +2ad. Well that's what I tried using but we just started this topic and I am not sure at all.

Since you don't have distance, that won't help. But what's the most basic definition of acceleration?

 

[weesieman]

The rate that velocity changes

 

[Doc Al]

The rate that velocity changes

Good. Express that mathematically.

 

[weesieman]

v=d/t

 

[Doc Al]

v=d/t

That's velocity. What about acceleration?

 

[Doc Al]

Take a look here: Basic Equations of 1-D Kinematics

 

[weesieman]

oh right I think i got it. vf-vi/t

 

[Doc Al]

oh right I think i got it. vf-vi/t

Good! a = (vf - vi)/t.

So, reverse that around and solve for vf.

 

[weesieman]

thanks i got it