ask an expert

The $x=10\mathrm{.}5mm$ by $Z=16$ mm by $25mm$ rubber blocks shown in the figure are used in a double$-$U shear mount to isolate the vibration of a machine from its supports. An applied load of $P=490N$ causes the upper to deflected downward by $5$ mm $.$

Answer the following:

a$)$ The average shear strain $=,$rad

b$)$ The average shear stress allowable dimension $=$ MPa

c$)$ The shear modulus $G=$ MPa