A force of F on a mass M causes an acceleration of 24 m/s2. What acceleration will result from a different force of 4 F on the same mass of M?

96m/s²

Explanation:

Let us interpret this problem;

 Note: from newton's second law of motion;

        Force  = mass x acceleration;

A force of F on a mass M causes an acceleration of 24 m/s2.

    F = M x 24 ----- i

        M  =

force of 4 F on the same mass of M;

      4F  = M x a  ---- ii

        M =

Now, we are to find the acceleration that will result if the second force is applied.

Since we are working on the same mass, equate them

             =

 Solve for a;

          Fa  = 96F

            a  = 96m/s²

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form