Answer:
To pay attention.
Step-by-step explanation:
According to the Question,

<h3>From the Question,</h3>
- Initial Acceleration,a = 5 m/s²
- Force at a = 5 m/s²,f = 25 N
- Final Acceleration,A = 9 m/s²
<h3>To find</h3>
Force exerted on the object at a = 9 m/s²
We Know that,

Firstly,we need to find the mass of the object
Thus,

Now,

<span>5x4 = 20
</span><span>5x1/4 = 5/4 or = 1.25
so 20 > 1.25 then </span><span>5x4 is greater than 5x1/4</span>
Answer:
A letter.
You can use any letter of the alphabet, but the ones that are most commonly used are x, y, and z.