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An object experiences a net zero externa...

An object experiences a net zero external unbalanced force. Is it possible for the object to be Travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of velocity. If no, provide a reason.

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No, the object will not travel with non-zero velocity. This is because by Newton.s first law of motion an object at rest will remain at-rest unless an unbalanced force acts upon it.
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NAND LAL PUBLICATION-FORCE AND LAWS OF MOTION-Exercises
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  11. What is the momentum of an object of mass m moving with velocity v ?

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