Homework Help: Physics helppp

Posted by Sam on Tuesday, July 13, 2010 at 2:26pm.

Imagine a landing craft approaching the surface of the moon of a distant planet. If the engine provides an upward force (thrust) of 2980 N, the craft descends at constant speed; if the engine provides only 2200 N, the craft accelerates downward at 0.46 m/s2.
(a) What is the weight of the landing craft in the vicinity of moon's surface?
N

(b) What is the mass of the craft?
kg

(c) What is the magnitude of the free-fall acceleration near the surface of the moon?
m/s2

Physics helppp - bobpursley, Tuesday, July 13, 2010 at 2:56pm
In both cases,
thrust=m(g-a)

you are given thrust and a in each case, you have two equations, figure "g", and mass m.

weight=mg of course.

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