Question

can kinetic energy be negative

Answer 1

Energy by virtue of its motion is called as kinetic energy. An object that has motion, whether it may be vertical or horizontal motion, has kinetic energy. Kinetic energy depends on mass (m) of the object and speed (v) of the object. The equation used to represent kinetic energy is:

KE = ½ mv2

As the expression of kinetic energy involves v², it can never be negative (mass is never negative and v² will always be positive).