The weight of child can be given as,
[tex]w=mg[/tex]
Substitute the known values,
[tex]\begin{gathered} w=(21.2kg)(9.8m/s^2)(\frac{1\text{ N}}{1kgm/s^2}) \\ =207.76\text{ N} \end{gathered}[/tex]
Divide the value of force with the weight.
[tex]\begin{gathered} \frac{F}{w}=\frac{4970\text{ N}}{207.76\text{ N}} \\ =23.9 \end{gathered}[/tex]
Thus, the force is 23.9 times the weight of child.
