Question

If a body has its initial velocity 72 km/hr and final velocity 90 km /hr, find its average velocity with all process

Answer 1

Answer:

(72+90) /2 =(162/2) =81km/hr is the average velocity.

Answer 2

Answer:

average velocity (V avg.) = 22.5 m/s ( 81km/hr)

Step-by-step explanation:

1) initial velocity (u) = 72km/hr

= 20m/s

2) final velocity. (v)= 90km/hr

= 25m/s

: average velocity (V avg.) = u+v/2

=20+25/2

=45/2

: average velocity (V avg.) = 22.5 m/s