Question

Can kinetic energy of an object be negative?

Answer 1

no kinetic energy of an object doesn't be negative it would be zero but it cannot be negative because kinetic energy is equal to half MV square let us consider the velocity of the object is zero then the whole kinetic energy is zero

Answer 2

HERE'S YOUR ANSWER


The value of Kinetic Energy can be negative.

When the object is moving the direction opposite to the direction of the force applied on the object, its displacement becomes negative.

When a displacement becomes negative, the velocity also becomes negative as both are vector quantities.

We know that, KE = 1/2 m $v^{2}$
                     Here, it is the square of the velocity which can never be negative. But, the direction of the velocity in this case is negative.

So, the direction of Kinetic Energy will also be negative.

And also, as KE is a vector quantity, it can be negative.


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