ch05-p080 - 80. We use the notation g as the acceleration...

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80. We use the notation g as the acceleration due to gravity near the surface of Callisto, m as the mass of the landing craft, a as the acceleration of the landing craft, and F as the rocket thrust. We take down to be the positive direction. Thus, Newton’s second law takes the form mg F = ma . If the thrust is F 1 (= 3260 N), then the acceleration is zero, so mg F 1 = 0. If the thrust is F 2 (= 2200 N), then the acceleration is
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