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Which of the following statemente is / a...

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)` only

B

`(a)` and `(b)` only

C

`(d)` only

D

`(c )` and `(d)` only

Text Solution

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The correct Answer is:
C
Potential energy can be positive, Negative or zero.
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