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One of the astronauts who went to the moon picked up a 5.25 kg rock to bring back to earth. On the moon, it had

One of the astronauts who went to the moon picked up a 5.25 kg rock to bring back to earth. On the moon, it had a weight of 44.2 N. The astronaut had to use an upward force of 49.7 N to lift the rock. What was the acceleration of this rock as he lifted it? (HINT: Draw a Free Body Diagram of the rock.)

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