Question

12. When we stretch the rubber bands using fingers. The net force exerted on
fingers by the rubber bands
a) increase with number
b) decreases with number
c) becomes zero
d) sometimes become zero ​

Answer 1

Answer:

When a rubber band is stretched, work is done on it , in course of which some amount of energy in the form of elastic potential energy (strain energy) is input into it.  This increases the potential energy of the system. When the rubber band is released, the potential energy is quickly converted to kinetic  energy.

Option C.