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Author Question: A ball is thrown vertically upward from the top of a building that is 57 metres high. The height of ... (Read 84 times)

tth

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on: May 26, 2021
A ball is thrown vertically upward from the top of a building that is 57 metres  high. The height of the ball above ground at  t  seconds later  is given by  h = 57 + 12t - 9.8t2 m.  Find the initial speed of the ball.
◦ 12 m/s
◦ 9.8 m/s
◦ 57 m/s
◦ 19.6 m/s
◦ 6 m/s
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Marked as best answer by tth on May 26, 2021

mochi09

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Reply #1 on: May 26, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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tth

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Reply 2 on: May 26, 2021
Excellent

xiazhe

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Reply 3 on: Yesterday
Wow, this really help

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