Question

HELP PLEASE !

for a moving object, the force acting on the object varies directly with the objects acceleration. When a force of 90 N acts on a certain object, the acceleration of the object is 10 m/s2. If the force is changed to 72 N, what will be the acceleration of the object?​

Answer 1

8 m/s^2

Explanation:

F=kA

F=force

k=constant you will use for each F=kA relation

A=acceleration

Second sentence says F=90 while A=10 (plug in and find k)

90=k(10) so k=9

We have for any (A,F) that F=9A

Last sentence F=72, what is A?

So 72=9A which means A=8 m/s^2