Work = (displacement) x (force in the direction of the displacement)
Since none of the force is in the direction of the displacement, the work it does
is zero. Something else is making the object move. It's not the 20N force.
Yes water is liquid.
Explanation: At room temperature (anywhere from zero degree centigrade to 100 degrees centigrade), water is found in a liquid state. This is because of the tiny, weak hydrogen bonds which, in their billions, hold water molecules together for small fractions of a second.
I think the answer you are looking for is this:
t= Vf - Vi
---------
a
so plug your information as needed.
ex. 146m/s- 0m/s divided by 26.6m/s^2 = 5.50s
So 5.50s is your time
:)