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Physics, 21.09.2019 05:10 kernlife

Aneglecting air resistance, a ball projected straight upward so it remains in the air for 10 seconds needs an initial speed of o 100 m/s. 60 m/s. 50 m/s 80 m/s. 110 m/s.

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Aneglecting air resistance, a ball projected straight upward so it remains in the air for 10 seconds...
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