The force is applied to the accelerating object that has a constant mass. Option A is correct.
The force applied to the object is the product of its mass and acceleration.
[tex]F = ma [/tex]
Where,
[tex]F[/tex] - force
[tex]m[/tex]- mass
[tex]a[/tex] - 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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