Answer:
t=10s
Step-by-step explanation:
Use equation d=v1*t + 1/2a*t^2
Now rearrange for t
We also know that v1 is zero so that part v1*t will be canceled since its zero
d= 1/2 *a*t^2
dx2=at^2
d*2/a=t^2
^1/2 means square root
(d*2/a)^1/2 = t
Now plug in values
(2x25m/0.5m/s^2) ^1/2= t
(50/0.5)^1/2=t
(100)^1/2=t
+10s, -10=t
we will take +10s ofc.