person standing at the edge of a cliff throws a rock upward from a height of 170 ft above ground level with an initial velocity of 64 ft/s. Calculate th ock when it is exactly 48 ft above the person's hand. Separate multiple answers with a comma. (Hint: Use h(t) = - 16t² +64t + 170 as the posit where h is in feet, t in seconds. Ignore air resistance.) nswer ft/s
person standing at the edge of a cliff throws a rock upward from a height of 170 ft above ground level with an initial velocity of 64 ft/s. Calculate th ock when it is exactly 48 ft above the person's hand. Separate multiple answers with a comma. (Hint: Use h(t) = - 16t² +64t + 170 as the posit where h is in feet, t in seconds. Ignore air resistance.) nswer ft/s
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:A person standing at the edge of a cliff throws a rock upward from a height of 170 ft above ground level with an initial velocity of 64 ft/s. Calculate the velocity of the
rock when it is exactly 48 ft above the person's hand. Separate multiple answers with a comma. (Hint: Use h(t) = − 16t² +64t + 170 as the position function,
where h is in feet, t in seconds. Ignore air resistance.)
Answer
ft/s
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