A spacecraft descends vertically near the surface of Planet X. An upward thrust of 25.0 kM from its engines slows it down at a rate of 1.20 m/s2, but if an upward thrust of only 14.5 kN is applied, it speeds up at a rate of 0.80 m/s2. Part APart complete What is the direction of the acceleration of the spacecraft in the case of 25.0 kN thrust

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.