Concept explainers
When only a pair of equal and opposite forces act on an object, what is the net force acting on it?
The net force acting on an object, when only a pair of equal and opposite force acts on it.
Answer to Problem 11RQ
The net force acting on an object, when only a pair of equal and opposite force acts on it, is zero.
Explanation of Solution
The net force acting on an object will be equivalent to the addition of all the forces on the object. The force has direction as well as magnitude so it is a vector quantity. If a pair of equal and opposite force acts on the object, then both the forces will cancel out each other.
Assume, that the two force acting on an object are
Write the expression for the net force acting on the object.
Substitute
Conclusion:
Therefore, the net force acting on the object is zero.
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