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Mission NL8 F=m*a Calculations - Question Group 6 Help
A 5-kg object is moving to the right with a constant velocity. The velocity value is 4 m/s. The net force encountered by the object is ____.
Accelerating objects are changing their velocity. The acceleration of an accelerating object is the rate at which the velocity changes.
Take a little time to reflect upon and think about Newton's first law of motion. The first law states that if the individual forces acting upon an object are balanced, then an object maintains its state of motion; that is, its velocity remains constant. The statement works in the reverse direction just as easily: if an object is maintaining its state of motion (keeping a constant velocity), then the individual forces acting upon the object are balanced.
If the individual forces acting upon an object are balanced, then the net force (or vector sum) is 0 N. And consistent with Newton's second law equation, the acceleration would be 0 m/s/s and the object must be maintaining a constant velocity value (of 0 m/s or 4 m/s, right).
