A landing craft approaches the surface of mars. If an upward thrust of \( 3250 \mathrm{~N} \) is...

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A landing craft approaches the surface of mars. If an upward thrust of \( 3250 \mathrm{~N} \) is supplied by the
\( \mathrm{P} \) rocket engine, the craft descends with constant

W speed. Mars has no atmosphere. If the upward thrust is \( 2750 \mathrm{~N} \), the craft accelerates downward at \( 0.4 \mathrm{~m} / \mathrm{s}^{2} \).What is the mass of the landing craft and the acceleration due to gravity in the vicinity of mars surface?
(1) \( 500 \mathrm{~kg}, 1.0 \mathrm{~m} / \mathrm{s}^{2} \),
(2) \( 1000 \mathrm{~kg}, 2.3 \mathrm{~m} / \mathrm{s}^{2} \)
(3) \( 1500 \mathrm{~kg}, 1.3 \mathrm{~m} / \mathrm{s}^{2} \)
(4) \( 1250 \mathrm{~kg}, 2.6 \mathrm{~m} / \mathrm{s}^{2} \)
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