For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of acts on a certain object, the acceleration of the object is . If the acceleration of the object becomes , what is the force?

15 N

Step-by-step explanation:

The relationship between force, mass and acceleration of an object is given by Newton's second law of motion:

where:

F is the force

m is the mass

a is the acceleration

For the object in this problem, at the beginning we have

F = 18 N

So, the mass of the object is

Later, we are told that the acceleration of the object becomes

And the mass of the object is still the same, therefore the new force exerted on the object is:

ab will be equal to

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80