# Question #d9079

Mar 7, 2017

$100 k m / h$ translates to $v = \frac{100}{3.6} = 27.8 m / s$

#### Explanation:

So the mean accerelation

$\overline{a} = \frac{\Delta v}{t} = \frac{27.8 m / s}{11.3 s} = 2.46 m / {s}^{2}$

We can't calculate the mean resultant force unless we know the mass $m$ of the car. It would be:

$\overline{{F}_{R}} = 2.46 \times m$, expressed in $k g \cdot m / {s}^{2} = N$