Question

The acid digestion test left 2.595 g of fiber from a composite specimen weighing 3.697 g.
The composite specimen weighs 1.636 g in water. If the specific gravity of the fiber and
matrix is 2.5 and 1.2, respectively, find the (i) theoretical volume fraction of fiber and matrix,
and (ii) theoretical density of composite.

Answer 1

Answer:

KE=12mv2.

The mass is m=25kg.

The velocity is v=10ms−1.

KE=12⋅25⋅102=1250J.