[{..طالبه موقره..}]

Straight line=>no acceleration
a=0

a=∆V∕∆t=0∕∆t=0


(a) how far does it travel ?

X1+X2
=40+60
=100 km

(b) find the avarage velocity?

V= ∆X ∕ ∆t
3-0/100-0=
33.33kmlh=