Can any object have mechanical energy even if its momentum is zero? Explain.

AcademicPhysicsNCERTClass 9

Yes, If the momentum of an object is zero, this means $mv=0$

$\Rightarrow v=0$, $m≠0$

If $v=0$, then kinetic energy $K=\frac{1}{2}mv^2=0$

Mechanical energy$=$Kinetic energy$+$Potential energy

Or $Mechanical energy$=$Potential energy

Therefore, an object can have mechanical energy even if its momentum is zero.

raja
Updated on 10-Oct-2022 13:28:52

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