Question

7)Assertion :-Kinetic energy is the energy possessed by
an object due to it's motion
Reason:-Kinetic energy of an object decreases with
increase of its speed​

Answer 1

Answer:

Assertion :-Kinetic energy is the energy possessed by

an object due to it's motion

Reason:-Kinetic energy of an object decreases with

increase of its speed

Answer 2

The answer is - Assertion is correct but Reason is incorrect.

EXPLANATION

• Kinetic energy is defined as the measure of work that an body does by the virtue of ots motion.
• Kinetic energy is a scalar quantity that is, it has magnitude but no direction.
• Its formula is given as;K.E = (1/2) mv².
• From the above expression it can be inferred that the kinetic energy is directly proportional to mass of of the object and its velocity.
• That is, With increase its speed the kinetic energy increases.
• Types- Radiant energy, Thermal, Sound, electrical, and Mechanical.
• Examples - A speeding car, charged particle in an electrical field.

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