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2 September, 16:27

An astronaut on another planet drops a 1-kg rock from rest and finds that it falls a vertical distance of 2.5 meters in one second. on this planet, the rock has a weight of: (hint: use d = 1/2 g t^2 to find g; then use w = mg to find weight.)

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  1. 2 September, 16:48
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    X=.5 (a) t^2 can be used: 2.5m=.5 (g) (1), g=5m/s^2.
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