Please only write correct answers I need it asap..
A descent vehicle landing on Mars has a vertical velocity toward the surface of Mars of 5.5 m/s. At the same time, it has a horizontal velocity of 3.5 m/s.
a. At what speed does the vehicle move along its descent path?
b. At what angle with the vertical is this path?
c. If the vehicle is 230 m above the surface, how long until it reaches the surface?