Question

According to Newton's second law of motion, if we have a rigid, unchanging mass and we observe it accelerating, what must be happening? Question 2 options: A force is being applied to the mass No force was or is being applied to the mass The mass MUST be changing A force was not applied.

Answer 1

The force is applied to the accelerating object that has a constant mass. Option A is correct.

What does Newton's second law of motion state?

The force applied to the object is the product of its mass and acceleration.

$F = ma$

Where,

$F$ - force

$m$- mass

$a$ - acceleration

From the equation, the force and the acceleration are in a proportional relation. The mass is not changing as given in the question.

Therefore, the force is applied to the accelerating object that has a constant mass.

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