Question

Underline the correct alternative: The rate of change of total momentum of a many particle system is proportional to the external force/ sum of the internal forces on the system.

Answer 1

Here's the answer

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Answer 2

Answer:

External force

Explanation:

The rate of change of total momentum of a many particle system is proportional to the external force/ sum of the internal forces on the system.

External force represents the applied force on the system.As per the Newton's second law of motion the rate of momentume is proportional to the external force.

$\dfrac{dp}{dt}\alpha F_{external}$...............(1)

After solving (1) we get,

F =ma

Where m is the mass and a is the acceleration of the body.