Question

v. Which of the following statement are incorrect
(I) A bird sitting on tree possess potential energy only
(II) A stationary object may have energy
(III) A flying bird has kinetic energy only
(IV) An aero plane running on the run-way possess kinetic & potential energy bot
a. III and IV
b. I and III
C. II and III
d. II and IV​

Answer 1

Answer:

d. II and IV. answer ho jaye ji bhai

Answer 2

a.) III and IV

• The energy an object has as a result of motion is known as kinetic energy.
• A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed. Kinetic energy is the type of energy that is transferred and is dependent on the mass and speed attained.
• Kinetic energy can be converted into other types of energy and transported between objects. A flying squirrel may run into a chipmunk that is standing still, for instance.
• Both kinetic and potential energy are possessed by a flying bird. Due to its height above the ground, it has potential energy stored inside it, and because it is in motion, it also has kinetic energy. Because of this phenomenon, a bird in flight has both kinetic and potential energy.

• An aeroplane that is running on the runway only has kinetic energy as it is not raised to a height which will make it gain potential energy.

Hence, option a is correct.

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