6. A vessel of base area 100 cm x 60 cm and height 200 cm is completely filled with a liquid of density
1.1 x 103 kg m- 3.
(a) Ignoring the atmospheric pressure, find :
(i) the thrust at the bottom of the vessel,
(ii) the pressure at the bottom of the vessel,
(iii) the pressure at a depth of 5 cm from the free
surface,
(iv) the net force experienced by a metal foil of
area 10 cm² placed at a depth of 5 cm from
the free surface,
(b) The thrust at the bottom of the vessel if the
atmospheric pressure equal to 1 x 105 N m2 is
taken into account.
Take g = 9.8 m s-2