In physics, it is shown that the height s of a ball thrown straight down with an initial speed of 48 ft sec from a rooftop 160 feet high is s s(t) 16t 2 48t 160 where t is the elapsed time that the ball is in the air (a) When does the ball strike the ground That is, how long is the ball in the air ...

a b C 16t48t1600 16t 3t100 1612t50 t 2 or t 5 The ball strikes the ground after 2 ...

In physics, it is shown that the height s of a ball thrown straight down with an

Question:

In physics, it is shown that the height s of a ball thrown straight down with an initial speed of 48 ft/sec from a rooftop 160 feet high is

s = s(t) = - 16t² + 48t + 160

where t is the elapsed time that the ball is in the air.

(a) When does the ball strike the ground? That is, how long is the ball in the air?

(b) What is the average speed of the ball from t = 0 to t = 1?

(d) What is the instantaneous speed of the ball at t = 1?

(e) What is the instantaneous speed of the ball when it strikes the ground?

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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Question Posted: Apr 06, 2019 06:12 AM

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In physics, it is shown that the height s of a ball thrown straight down with an

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Precalculus

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