Imagine a landing craft approaching the surface of the moon of a distant planet. if the engine provides an upward force (thrust) of 3470 n, the craft descends at constant speed; if the engine provides only 2200 n, the craft accelerates downward at 0.37 m/s2.(a) what is the weight of the landing craft in the vicinity of callisto’s surface? (b) what is the mass of the craft? (c) what is the magnitude of the free-fall acceleration near the surface of callisto?