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Q.

Is it true that the kinetic energy of an object can be negative?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is False.
Kinetic energy of a body is calculated as:
KE=12mv2
Kinetic energy can either be zero or positive, but it can never be negative. Kinetic energy can never be negative because kinetic energy is defined as half an object's mass multiplied by the object's velocity squared. Mass can never be negative because it is a quantity of matter, and Since the velocity is squared, it is always positive.
 
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