Question

The acceleration of The Munster’s car is 9.71 m/s2 when he applies 5050 N of net force (by way of the engine). What is the mass of his car in kilograms?
520 kg


49,000 kg


0.0019 kg


none of the above

Answer 1

Force is defined as the product of mass of the body and its acceleration.

In the question we are given,

Force (F) = 5050 N

Acceleration (a) = 9.71 m/$s^{2}$

Now, According to Newton's second law of motion ,

            F= m*a

Dividing both sides by a, we get

            $\frac{F}{a}$=m

or,

            m=$\frac{F}{a}$

Putting the values of F and a we get,

           m= $\frac{5050}{9.71}$

           m=520.08 kg

Hence, the mass of Munster's Car ≈ 520 kg.

Answer: 520 kg