Question

2. You have a bag of cotton and an
iron bar, each indicating a mass
of 100 kg when measured on a
weighing machine. In reality, one
is heavier than other. Can you
say which one is heavier
and why?​

Answer 1

Answer:

Their weight are same.

Answer 2

$\huge\mathfrak{{answer}}$

The bag of cotton is heavier than the bar of iron. The cotton bag has a larger air thrust than the iron bar. The weighing machine therefore indicates a smaller cotton bag weight than its actual weight.