Question

A force of 14 N causes an object to accelerate at 2 m/s2.

Determine the mass of the object.

Answer 1

According to Newton's second law which states that the acceleration of an object is directly related to the net force and inversely related to its mass.

so , considering Newton's second law of motion

$$Fnet =ma$$

in order to determine the mass of the object we can use the above formula:

$Fnet=14N$ and acceleration $a=2m/s2$

$$m=Fnet/a=14/2=7kg$$

Answer:

mass of the object $m=7kg$