She travels 4.04 m
Further explanation
Linear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration
• An equation of uniformly accelerated motion
V = vo + at
Vt² = vo² + 2a (x-xo)
x = distance on t
vo / vi = initial speed
vt / vf = speed on t / final speed
vf=4 m/s
vi=1.2 m/s
a = 1.8 m/s
[tex]\tt vf^2=vo^2+2ax\\\\4^2=1.2^2+2\times 1.8\times x\\\\16=1.44+3.6x\\\\x=4.04~m[/tex]
