Answer:
The correct answer is 9 m per [tex]second^{2}[/tex]
Step-by-step explanation:
Force is defined by mass of an object times it's acceleration.
Let the mass of the object be m kilograms.
When a force of 30 N acts on a certain object the acceleration of the object is 5 m per [tex]second^{2}[/tex]
∴ 30 = m × 5
⇒ m = 6.
If the force is changed to 54 N, let the acceleration of the object be x m per [tex]second^{2}[/tex].
∴ 54 = m × x
⇒ x = [tex]\frac{54}{6}[/tex] = 9
Thus when the force is 54 N, the acceleration of the object is 9 m per [tex]second^{2}[/tex].