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Question: A falling object accelerates at about 10 m/s2 if we ignore air resistance. How fast do you have to throw a ball upwards for it to take 3 seconds before you catch it again?




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Quote of the day...

The gains of economic growth are being usurped by a few, and the pains of the growth are being borne by the many. The trick is to meet the desire for consumption in a sustainable way. It is easy to change mindsets - it is difficult to change set minds.

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