A model rocket shot straight upward with an initial velocity of vo = 25 m/s will reach a height of h meters in t seconds, where the height h is modeled by h(t) = -4.9t2 + 25t. (a) When does the rocket reach a height of 20 m? (Round your answers to two decimal places.) t = sec (smaller value) t = sec (larger value) (b) When does the rocket reach the highest point of its path? (Round your answer to two decimal places.) t = sec (c) When does the rocket hit the ground? (Round your answer to two decimal places.) t = sec

A model rocket shot straight upward with an initial velocity of vo = 25 m/s will reach a height of h meters in t seconds, where the height h is modeled by h(t) = -4.9t2 + 25t. (a) When does the rocket reach a height of 20 m? (Round your answers to two decimal places.) t = sec (smaller value) t = sec (larger value) (b) When does the rocket reach the highest point of its path? (Round your answer to two decimal places.) t = sec (c) When does the rocket hit the ground? (Round your answer to two decimal places.) t = sec

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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