Answer:
[tex]V_g=63.3m/s[/tex]
Explanation:
From the question we are told that:
Speed of Plane [tex]v_s=60m/s[/tex]
Wind speed [tex]V_w=20m/s[/tex]
Generally the equation for Speed of plane relative to the ground V_g is mathematically given by
[tex]V_g=\sqrt{V_s^2+V_w^2}[/tex]
[tex]V_g=\sqrt{60^2+20^2}[/tex]
[tex]V_g=\sqrt{4000}[/tex]
[tex]V_g=63.3m/s[/tex]