A stone is dropped from the upper observation deck of a tower, 200 m above the ground. (Assume g = 9.8 m/s2.) (a) Find the distance (in meters) of the stone above ground at time t. s(t) = 4.91 + 200 (b) How long does it take the stone to reach the ground? (Round your answer to two decimal places.) 6.39 (c) With what velocity does it strike the ground? (Round your answer to one decimal place.) 62.6 m/s (d) If the stone is thrown downward with a velocity of 9 m/s, how long does it take to reach the ground? (Round your answer to two decimal places.)

A stone is dropped from the upper observation deck of a tower, 200 m above the ground. (Assume g = 9.8 m/s2.) (a) Find the distance (in meters) of the stone above ground at time t. s(t) = 4.91 + 200 (b) How long does it take the stone to reach the ground? (Round your answer to two decimal places.) 6.39 (c) With what velocity does it strike the ground? (Round your answer to one decimal place.) 62.6 m/s (d) If the stone is thrown downward with a velocity of 9 m/s, how long does it take to reach the ground? (Round your answer to two decimal places.)

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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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

A stone is dropped from the upper observation deck of a tower, 200 m above the ground. (Assume g = 9.8 m/s2.)
(a) Find the distance (in meters) of the stone above ground at time t.
s(t) = 4.9t + 200
(b) How long does it take the stone to reach the ground? (Round your answer to two decimal places.)
6.39
(c) With what velocity does it strike the ground? (Round your answer to one decimal place.)
62.6
m/s
(d) If the stone is thrown downward with a velocity of 9 m/s, how long does it take to reach the ground? (Round your answer to two decimal places.)

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