A force produces an acceleration of$50{\text{cms}}^{-2}$ . When it acts on a body of mass 10 kg. Then the force is in Newton

                                              $=50\times {10}^{-2}{\text{ms}}^{-2}$                                 $\left[\text{centi}={10}^{-2}\right]$

                                               $=0.5{\text{ms}}^{-2}$

$\text{F}=\text{10 kg}\times 0.5{\text{ms}}^{-2}$

$=5{\text{kgms}}^{-2}$

$\text{F}=5\text{N}$