Chapter 4, Problem 44GP

|| A spacecraft descends vertically near the surface of Planet X. An upward thrust of 25.0 kN from its engines slows it down a: a rate of 1.20 m/s², out it speeds up at a rate of 0.80 m/s² with an upward thrust of 10.0 kN. (a) In each cause, what is the direction of the acceleration of the spacecraft? (b) Draw a free-body diagram for the spacecraft. In each case. speeding up or slowing down what is the direction of the net force of the spacecraft^-? (c) Apply Newton's second law to each case slowing down or speeding up, and use this to find the spacecraft’s weight near the surface of Planet X.