Can an object have mechanical energy if its momentum is zero?

... a body mass never be zero but velocity can be zero if a body is at rest, So if a body is at rest its momentum is zero but if it is in rest at a height it possesses gravitational potential energy hence mechanical energy. Yes. Mechanical energy includes gravitational potential energy. read more

Momentum is the product of mass and velocity of a body, for a body mass never be zero but velocity can be zero if a body is at rest, So if a body is at rest its momentum is zero but if it is in rest at a height it possesses gravitational potential energy hence mechanical energy. read more

Long Answer - Mechanical Engineering is the sum of kinetic energy and potential energy. Zero momentum means zero kinetic energy but you still can still have potential energy with zero momentum like a when you hold a object above the sea level. So, having potential energy means object will have Mechanical Energy. read more

Answer: Momentum is the product of mass and velocity of a body, for a body mass never be zero but velocity can be zero if a body is at rest, So if a body is at rest its momentum is zero but if it is in rest at a height it possesses gravitational potential energy hence mechanical energy. Yes. read more