According to the second law of motion, the rate of change of momentum is proportional to ..............
force
The correct answer is option 3 i.e. force.
According to Newton’s Second Law of Motion, the rate of change of momentum of an object is directly proportional to the applied force and occurs in the direction of the force. Mathematically:
F=dt/dp = ma
Where p is momentum, m is mass, and a is acceleration.
This law explains how an object’s motion changes under a force.
Other Options Explained:
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Displacement refers to position change not directly related to momentum change.
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Inertia: Is the resistance to change in motion, not a rate of change.
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Energy is the capacity to do work, not the cause of momentum change.
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