Originally Posted by **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 |

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