5. Can any object have momentum even if its mechanical energy is zero? Explain.
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Answered by
1
Answer:
It has some kinetic energy. It means that the body has motion. Hence, Even if its mechanical energy is zero, the body has momentum.
Answered by
1
Explanation:
It has some kinetic energy. It means that the body has motion. Hence, Even if its mechanical energy is zero, the body has momentum.
Potential energy and the total mechanical energy of a body may be negative. Kinetic energy is always positive.
If total mechanical energy equals zero, it is possible P.E.=−K.E.
Since K.E.
=0, momentum
=0
One such example is a rocket fired at exactly escape velocity(speed at which body escapes gravitational pull of earth).
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