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Q.

  • A rubber band when stretched, energy is acquired by it.
  • An object when thrown from a height acquires some energy.

Which among the following statement is the reason for the above assertions?

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a

The energy gets stored due to the work done on the object.

b

Muscular energy from our hands is acquired by the objects

c

The energy acquired is from the air.

d

Kinetic energy from our hands gets converted to potential energy.

answer is B.

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Detailed Solution

Energy is acquired when a rubber band is stretched or when an object is thrown from a height. This is because the energy gets stored due to the work done on the object.

The energy transferred to an object is stored as potential energy if it is not used to cause a change in the velocity or speed of the object.

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