Question

What's the net force acting on an 18-kg object if an acceleration of 3.0 m/s2 is produced?

Answer 1

Newton's 2nd law of motion:    Force = (mass) x (acceleration)

         Force = (18 kg) x (3.0 m/s²) = 54 newtons .
                                       

Answer 2

Answer : The net force acting on 18-kg of an object is, 54 N

Solution : Given,

Mass of an object = 18 Kg

Acceleration of an object = $3m/s^2$

According to the newtons second law of motion, the net force of an object is equal to the product of the mass of an object and acceleration of an object.

Formula used :

$F=m\times a$

where,

F = net force on an object

m = Mass of an object

a = Acceleration of an object

Now put all the given values in the above formula, we get the net force on an object.

$F=(18Kg)\times (3m/s^2)=54\text{ Kg }m/s^2=54N$

$(1N=1\text{ Kg }m/s^2)$

Therefore, the net force acting on 18-kg of an object is, 54 N