Question

Use Newton's second law of motion to calculate the mass of an object when a force of 34 N accelerates the object 4 m/s^2.




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Answer 1

Answer:

F=ma

34=m4

m=34/4

m=17/2

m=8.5 is the answer of this question OK

Answer 2

The mass of an object using Newton's second law of motion is 8.5 kg

Given: The force acting on the object = 34 N,

           The acceleration of the object =  4 m/s².

To Find: The mass of an object using Newton's second law of motion.

Solution:

• Newton's second law of motion states that,

       Force is equal to the rate of change of momentum. For a constant mass, force equals mass times acceleration.

• The second law of motion can be represented by the formula,

        F = m × a                                           ...(1)

where F = force, m = mass, a = acceleration.

Coming to the numerical, we are given,

          F = 34 N and a =  4 m/s².

So, putting respective values in (1), we get;

           F = m × a    

    ⇒   m = F / a

    ⇒   m = 34 / 4

    ⇒   m = 8.5 kg        

Hence,

The mass of an object using Newton's second law of motion is 8.5 kg.

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