Question

Which material is very strong and tough but shows very little elongation as it absorbs energy? A. spider silk B.rubber C.Kevlar® D.concrete

Answer 1

Answer:

C) Kevlar

Explanation:

Kevlar is a fiber which is heat resistance and very strong.

This is stronger than steel so it is used in many purpose due to its lower weight.

It is used to design the special suits of army and commando. Since it is heat resistant so it is also used as the suits to work at high temperature industries.

Also this fiber has very small tendency to expand so the elongation in this fiber is very small when we apply some force on it.

So in this type of fiber the strength is more and the stretch is less

So correct answer will be

C) Kevlar

Answer 2

C. Kevlar

:) ++ * ++ !