Question

A closed compartment containing gas in moving with some acceleration on horizontal direction. Neglect effect of gravity. Then the pressure in the compartment is ___________

(a) Same everywhere

(b) Lower in the front side

(c) Lower in the rear side

(d) Lower in the upper side

This question was posed to me during an interview.

The above asked question is from Thrust of a Liquid topic in division Mechanical Properties of Solids of Engineering Physics I

Answer 1

The correct option is (b) Lower in the front side

To explain: As the compartment has acceleration in the forward direction, the gas molecules experience an acceleration in the backward direction. This lowers the pressure in the compartment in the front side.