For the following calculation, ignore air resistance Do not round your answer. Write the answer exactly as it is. An object falls from rest and strikes the ground 19 seconds later. The object's initial height was __ meters.

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Physics

Delilah Gilmore

10 November, 17:06

For the following calculation, ignore air resistance Do not round your answer. Write the answer exactly as it is. An object falls from rest and strikes the ground 19 seconds later. The object's initial height was __ meters.

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Aryana Mcfarland · Answer 1

We study the origin of the Ox axis on the ground. The body motion law is x = h-gt² / 2. When the body reaches the ground x = 0 = > h=gt²/2=10*19²/2=5*361=1805 m