Question

A liquid weighing 10 N is filled in a container as shown. The force exerted by the base of the container on the liquid is :

• A. 10N
• B. >10N
• C. <10N
• D. Zero.

Answer 1

Answer: (C)

<10N

Answer 2

Total force by the container on the liquid is 10N. Part of it is exerted by wall which exerts force perpendicular to surface at every point. Sum of horizontal components over total wall surface is zero. Vertical components add up. Thus base would exert a force <10N.