[tex]Weight = 9.8 \: N[/tex]

[tex]W = \: m \times g \\ \\ 9.8 = m \times 9.8 \\ \\ m = \frac{9.8}{9.8} \\ \\ m = 1 \: kg [/tex]

[tex]Force , \\ \\ F = mass \times acceleration \\ \\ 10 \: N = 1 \: kg \times a \\ \\ Acceleration \\ \\ a = 10 \: m/s {}^{2} [/tex]

Answer:

W=m×g

9.8=m×9.8

m = 1 kg

Force, F=mass×acceleration

20N=1Kg×a

[tex]Acceleration,

a=20m/s {}^{2}

[/tex]