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Q.

State whether the following statements are true or false:
An object experiences the net zero external unbalance force. Is it possible for the object to be traveling with non-zero velocity?


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a

True

b

False 

answer is A.

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Detailed Solution

The given statement is true.
Concept: Newton's first law of motion states that an item will only depart from its resting state when the net force acting on it is not zero. The item will continue to move at the same speed and in the same direction if it is at rest or traveling with uniform velocity when a net non-zero force is applied to it. If the net external force is zero, however, the object will continue to move at the same speed and in the same direction.
Until an external force is applied to an object, Newton's first law of motion states that it will remain at rest or move uniformly.
As a result, V=0 when net F=0.
Newton's second law of motion states that an object's mass (m) and acceleration (a) are multiplied to produce its force (F) .
so that F=ma
Acceleration = a=vf-vit
Where, and are the object's final and starting velocities.
Now, a=0 when F=0.
Consequently, vf=vi, In other words, if an object is moving uniformly, it will keep moving in the same direction at the same speed even when the imbalanced force acting on it is zero.
Consequently, an item can move with constant velocity when it encounters a net zero external unbalanced force. So, the given statement is true.
 Hence , the given statement is true.
 
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