chocolatelover

Hello everyone,

Could someone please tell me if this looks right?

If an object has a mass of 200g and the net force is 5.0N, what is the acceleration?

5N=200ga
a=.025N/g

Acceleration is normally in m/s^2, right? Could you please show me how to convert it?

Thank you very much

topsquark

First you need to get the mass into kg, not g. So the first line should read
$\displaystyle 5~N = (0.200~kg)a$

$\displaystyle a = \frac{5~N}{0.200~kg} = 25~N/kg$

So now for the unit. We know that $\displaystyle 1~N = 1~kg~m/s^2$. Thus
$\displaystyle \frac{N}{kg} = \frac{kg~m/s^2}{kg} = m/s^2$

-Dan

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