
Interpretation:
Whether the mass of a stretched rubber band will remain same is to be explained.
Concept introduction:
Every matter is made of substance that has mass and volume. The material with which any matter is made of, decides the mass and volume of the object.

Answer to Problem 5E
A stretched rubber band will have the same mass as it is made of same material, rubber. Nothing is added or removed from the rubber band on stretching.
Explanation of Solution
A stretched rubber band does not show any increase or decrease in its mass on stretching. It simply elongates on stretching. Its length increases but its thickness decreases on stretching. No new material is added or removed from the rubber band.
Since the amount and quality of matter remains same in the stretched band as in the un - stretched band, its mass remains same.
A stretched rubber band will have the same massas the un - stretched band as the amount and quality of matter remains the same.
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