The engine is cut off when the lander is 50 m above the

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A lunar lander is making its descent to a moon base and descends slowly under the retro-thrust of its descent engine. The engine is cut off when the lander is 5.0 m above the surface with a downward speed of 0.8 m/s. With the engine off, the lander is in free-fall. What is the speed of the lander just as it hits the surface?

Reference no: EM13641376

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