A truck has to travel at what speed to stay underneath an airplane traveling at 105 kg/h at 25% angle to the ground.

1 answer

Speed is not meaured in kilograms per hour. I assume you meant kilomets per hour.

Do you mean a 25% angle or a 25 degree angle? A 25% slope would be 14.04 degrees. The slope is the tangent of the angle.

Whatever the angle is, call it A.
The truck speed would have to be
(105 km/h)*cosA