An open vessel containing liquid is moving with constant acceleration a on a levelled horizontal surface. For this situation mark out the correct statement(s).

Pressure decreases in the direction of acceleration. If we take two points 1 and 2, two points in the horizontal line, than we can write p1−p2=ρal. As the inclination of liquid surface with tan⁡θ=a/g. The equipressure lines will be parallel to this line.