1.

Which of the following statemente is `/` are INCORRECT? `(a)` Mechanical energy is the sum of kinetic energy and potential energy. `(b)` Potential energy is a relative quantity. It depends on the choice of reference point. `(c )` Kinetic energy must be non negative. `(d)` Potential energy must be postive.A. `(b)` onlyB. `(a)` and `(b)` onlyC. `(d)` onlyD. `(c )` and `(d)` only

Answer» Correct Answer - C
Potential energy can be positive, Negative or zero.


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