Answer:
a) τ= 2.59 MPa
b)y=28.4 x 10⁻⁵ cm
Step-by-step explanation:
Given that
L= 3.3 cm
d= 7 cm
m= 1000 kg
G= 3 x 10¹⁰ Pa
Force due to load 1000 kg
P = m g= 1000 x 10 N
P = 10000 N
Area A


A=3848.45 mm²
The shear stress τ


τ= 2.59 MPa
Lets take vertical deflection is y
We know that
τ = G Φ
For small deflection

So
τ L = G y


y=0.000284 cm
y=28.4 x 10⁻⁵ cm