rock is launched from a cliff. The height of the rock, h meters, t seconds after launch is modelled by the equation h=-4.9t sqaured +25t +15. The time it takes for the rock to reach its maximum height, to the nearest tenth of a second, is _____ s. The maximum height reached by the rock, to the nearest tenth of a meter, is _____ m. The time it takes for the rock to hit the ground, to the nearest tenth of a second, is _____ s.
rock is launched from a cliff. The height of the rock, h meters, t seconds after launch is modelled by the equation h=-4.9t sqaured +25t +15. The time it takes for the rock to reach its maximum height, to the nearest tenth of a second, is _____ s. The maximum height reached by the rock, to the nearest tenth of a meter, is _____ m. The time it takes for the rock to hit the ground, to the nearest tenth of a second, is _____ 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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rock is launched from a cliff. The height of the rock, h meters, t seconds after launch is modelled by the equation h=-4.9t sqaured +25t +15.
The time it takes for the rock to reach its maximum height, to the nearest tenth of a second, is _____ s.
The maximum height reached by the rock, to the nearest tenth of a meter, is _____ m.
The time it takes for the rock to hit the ground, to the nearest tenth of a second, is _____ s.
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