The speed of an airplane that normally flies at 200 km/h when it encounters an 80 km/h wind from the side will be 215.4065 m/sec.
Speed is defined as the rate of change of the distance or the height attained. It is a time-based quantity. It is denoted by u for the initial speed while v for the final speed. Its SI unit is m/sec.
The resultant or the net value of the velocity is found as;
[tex]\rm V_{net}=\sqrt{ V_A^2+V_B^2} \\\\ \rm V_{net}=\sqrt{(200)^2+(80)^2} \\\\ V_{net}=\sqrt{46400} \\\\ V=215.4065\ km/h[/tex]
Hence, the speed of an airplane will be 215.4065 m/sec.
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