The mass of the bird is given as 6kg,
[tex]m=6[/tex]And the acceleration of the bird is 7 meters per second squared,
[tex]a=7[/tex]According to the second law of motion, the force corresponding to a body under acceleration is given by,
[tex]F=ma[/tex]Substitute the values and obtain the corresponding force (F) as follows,
[tex]\begin{gathered} F=6\cdot7 \\ F=42 \end{gathered}[/tex]Thus, the force is 42 Newtons.