5
(ii) In a laboratory on the Moon, the plastic cube is held stationary, using a clamp, in
beaker of the oil of density 850 kg/m³.
The arrangement is shown in Fig. 3.2.
cube.
oil.
clamp
3.0 cm
clamp
stand
bench
Fig. 3.2
The lower face of the cube is 3.0 cm below the surface of the oil
Use your answer to (c)(i) to calculate the pressure due to the oil on the lower face of the
cube.