1.

A rectangular iron block is placed over a table in different ways such that different faces touch the table. In all these cases, which of the following can be concluded?

A.  The block exerts the same thrust and same pressures.
B.  The block exerts the same thrust and different pressure.  
C.  The block exerts different thrusts but the same pressures.
D.  The block exerts different thrusts and different pressures.
Answer» C.  The block exerts different thrusts but the same pressures.


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