For the speed, use the Pythagorean theorem. You have been given two perpendicular components and you want the hypotenuse.
The angle with the vertical is
arctan 57.2/35.4= 58 degrees
A descent vehicle landing on the moon has
a vertical velocity toward the surface of the moon of 35.4 m/s. At the same time, it has a horizontal velocity of 57.2 m/s.
At what speed does the vehicle move along
its descent path?
At what angle with the vertical is its path?
1 answer