Question

a body starts from rest with a uniform acceleration of 1 m/s2.The average velocity in between the time interval 3s to 5s is

Answer 1

Explanation:

Average velocity as I recall is total displacement /total time

But first we need to get function of velocity by integrating acceleration …

A=1

dv/dt=1

V-v°=t-t1

At t=0

V°=0

V=t

DX/dt=t

X=t^2/2

Average velocity =

((5^2–3^2)/2)/5–3

=4