Finding average/final velocity and acceleration.

[HelloImAsh]

Homework Statement

An object with an initial velocity of 10.0m/s moves 720m in 45s along a straight line iwht constant acceleration. For the 45s interval, find its average velocity, final velocity and acceleration.

Homework Equations

5 Kinematic equations:
d=1/2(Vf+Vi)t
Vf=Vi+at
d=Vit+1/2at^2
d=Vft-1/2at^2
Vf^2=Vi^2+2ad

I can't seem to distinguish between the final and average velocity. The acceleration part is simple enough. Thanks :)

 

[tiny-tim]

Welcome to PF!

Hi HelloImAsh! Welcome to PF!

(try using the X² button just above the Reply box )

I can't seem to distinguish between the final and average velocity. The acceleration part is simple enough. Thanks :)

average velocity = total displacement divided by total time

(which, for constant acceleration, = (v_i + v_f)/2)

 

[HelloImAsh]

Thanks, I got the answer.