Question

Can the value of Kinetic energy be negative? Explain the reason.

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Answer 1

Answer:

Kinetic energy is either zero or positive, never negative. This is because kinetic energy is defined as half an objects' mass multiplied by the square of its velocity. Since mass is a measure of matter, it can never be negative, and since velocity is squared, it is always positieve.

Answer 2

No, kinetic energy cannot be zero.

It will either be positive or zero.

This is because mass can't be negative.

Velocity can be negative but square of speed would be a non-negative integer.

Hence, kinetic energy cannot be zero.